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facebook/lexical

https://github.com/facebook/lexical · scanned 2026-05-16 12:50 UTC (1 day, 8 hours ago) · 10 languages

243 findings (40 legacy + 203 scanner) 16th percentile · Typescript · large (100-500K LoC) Scanner says 77 (lower by 14)

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UNIFIED Repobility · multi-layer engine · AI coders

Complete repo analysis

Last scanned 3 days, 1 hour ago · v1 · 236 findings from 2 sources. Findings combine the legacy security pipeline AND the multi-layer engine (atlas, wiring, flows, ranked) AND verified AI agent contributions.

JSON
Combined
73.3
/100
Repobility
70
33 legacy
9-layer
77
100.0% cov · 203 gaps
Critical
0
click to filter
Agents
6
0 votes
Crowd
0
reported
{# ── 2026-05-17 R27 #5: score breakdown panel ────────────────────── Surfaces the score_breakdown JSON that's been silently stored on Repository for months. Turns hidden math into a trust signal. #}
Score breakdown â 2026-05-17-v4 calibration-aware
Component Sub-score Weight Contribution
structure_score 60.0 0.15 9.00
security_score 87.4 0.25 21.85
testing_score 31.0 0.20 6.20
documentation_score 60.0 0.15 9.00
practices_score 55.0 0.15 8.25
code_quality 80.0 0.10 8.00
Overall 1.00 62.3
Calibrated penalty buckets (security_score): web: 1.6 · threat: 11.0
security_score may be inflated — optional scanners skipped due to repo size/fast scan
Severity distribution — click a segment to filter
Active filters: source: legacy × excluding tests × Reset all
Severity: Critical 0 High 8 Medium 15 Low 108 Source: Legacy 33 9-layer 203 Crowd 0 Layer: Quality 89 Security 6 Software 56 Api 1 Frontend 74 Cicd 10
Scan summary Repository scanned at 76.7/100 with 100.0% coverage. It contains 5112 nodes across 3 cross-layer flows, written primarily in mixed languages. Engine surfaced 203 findings — concentrated in frontend (74), quality (65), software (50). Risk profile is high: 0 critical, 1 high, 12 medium. Recommended next step: open the frontend layer findings first — that's where the highest-impact wins live.

Showing 33 of 236 findings. Click TP / FP to vote on a finding's accuracy — votes adjust the confidence weighting and improve detection across the platform.

high Legacy security injection conf 1.00 [SEC006] XSS Risk: Direct HTML injection without sanitization.
Use textContent instead of innerHTML. Sanitize with DOMPurify.
examples/vanilla-js/src/main.ts:18 injectionlegacy
high Legacy security injection conf 1.00 [SEC006] XSS Risk: Direct HTML injection without sanitization.
Use textContent instead of innerHTML. Sanitize with DOMPurify.
examples/vanilla-js-plugin/src/main.ts:20 injectionlegacy
high Legacy software xxe conf 1.00 [SEC027] XML External Entity (XXE) — Node.js xml parsers: Node.js XML parsers can expand external entities if not configured. libxmljs in particular has had XXE CVEs.
Pass `noent: false` to libxmljs. Avoid xml2js or pass explicit secure config. Prefer parsers that don't expand external entities at all.
packages/lexical-playground/src/plugins/ActionsPlugin/index.tsx:168 xxelegacy
high Legacy software xxe conf 1.00 [SEC027] XML External Entity (XXE) — Node.js xml parsers: Node.js XML parsers can expand external entities if not configured. libxmljs in particular has had XXE CVEs.
Pass `noent: false` to libxmljs. Avoid xml2js or pass explicit secure config. Prefer parsers that don't expand external entities at all.
packages/lexical-clipboard/src/clipboard.ts:179 xxelegacy
high Legacy software ssrf conf 1.00 [SEC029] Server-Side Request Forgery (SSRF) — outbound HTTP from user input: Outbound HTTP request to a user-controlled URL without allowlist validation. Attackers can probe internal services (169.254.169.254 metadata, internal Kubernetes endpoints, file:// URIs), exfiltrate data, or pivot through your network. SSRF is OWASP A10:2021 and a frequent foothold in cloud breaches.
Validate the URL against an allowlist BEFORE fetching: ALLOWED = {'images.example.com', 'cdn.example.com'} host = urlparse(url).hostname if host not in ALLOWED: abort(400) Or use a server-side proxy (Imgproxy / serve-files-only-from-S3) that isolates outbound network access from the request h…
packages/lexical-react/src/LexicalAutoEmbedPlugin.tsx:177 ssrflegacy
high Legacy software ssrf conf 1.00 [SEC029] Server-Side Request Forgery (SSRF) — outbound HTTP from user input: Outbound HTTP request to a user-controlled URL without allowlist validation. Attackers can probe internal services (169.254.169.254 metadata, internal Kubernetes endpoints, file:// URIs), exfiltrate data, or pivot through your network. SSRF is OWASP A10:2021 and a frequent foothold in cloud breaches.
Validate the URL against an allowlist BEFORE fetching: ALLOWED = {'images.example.com', 'cdn.example.com'} host = urlparse(url).hostname if host not in ALLOWED: abort(400) Or use a server-side proxy (Imgproxy / serve-files-only-from-S3) that isolates outbound network access from the request h…
packages/lexical-utils/src/index.ts:151 ssrflegacy
high Legacy software ssrf conf 1.00 [SEC029] Server-Side Request Forgery (SSRF) — outbound HTTP from user input: Outbound HTTP request to a user-controlled URL without allowlist validation. Attackers can probe internal services (169.254.169.254 metadata, internal Kubernetes endpoints, file:// URIs), exfiltrate data, or pivot through your network. SSRF is OWASP A10:2021 and a frequent foothold in cloud breaches.
Validate the URL against an allowlist BEFORE fetching: ALLOWED = {'images.example.com', 'cdn.example.com'} host = urlparse(url).hostname if host not in ALLOWED: abort(400) Or use a server-side proxy (Imgproxy / serve-files-only-from-S3) that isolates outbound network access from the request h…
scripts/update-tsconfig.mjs:112 ssrflegacy
medium Legacy security injection conf 0.50 [SEC005] Command Injection Risk: Unsafe shell execution or eval of user input.
Use subprocess with shell=False and a list of args. Never eval user input.
packages/lexical-playground/src/plugins/AutoEmbedPlugin/index.tsx:180 injectionlegacy
medium Legacy software redos conf 1.00 [SEC031] Catastrophic Backtracking Regex (ReDoS): Regex contains nested quantifiers like `(a+)+` or quantified alternation with overlapping branches. On adversarial input these patterns exhibit exponential backtracking, freezing the process. CWE-1333. Real CVEs: CVE-2017-16129 (minimatch), CVE-2021-3807 (ansi-regex), and dozens more.
Three options, pick one: 1. Rewrite the pattern to avoid nested quantifiers. E.g. `(a+)+` is functionally equivalent to `a+` for matching purposes. 2. Use Google's re2 (`pip install google-re2`): linear-time, drop-in replacement for `re` for most use cases. 3. Set a hard timeout: `s…
packages/lexical-markdown/src/MarkdownTransformers.ts:229 redoslegacy
medium Legacy quality quality conf 0.78 Public web service has no security.txt
security.txt gives researchers and customers a safe disclosure channel. Public web apps and APIs should publish it under /.well-known/security.txt.
.well-known/security.txt qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical/src/extension-core/index.ts:23 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical/src/LexicalEditorState.ts:47 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/shared/LexicalMenu.tsx:237 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/shared/LexicalMenu.tsx:127 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/LexicalRichTextPlugin.tsx:11 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/LexicalMarkdownShortcutPlugin.tsx:12 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/LexicalHorizontalRulePlugin.ts:17 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/LexicalHorizontalRuleNode.tsx:65 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/LexicalHorizontalRuleNode.tsx:39 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-react/src/LexicalBlockWithAlignableContents.tsx:74 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/utils/setFloatingElemPositionForLinkEditor.ts:7 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/plugins/PageBreakExtension/index.tsx:2 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/plugins/DraggableBlockPlugin/index.tsx:53 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/nodes/YouTubeNode.tsx:5 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/nodes/YouTubeNode.tsx:1 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/nodes/TweetNode.tsx:5 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/nodes/PollComponent.tsx:139 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-playground/src/nodes/ImageNode.tsx:297 qualitylegacy
low Legacy quality quality conf 0.86 Duplicated implementation block across source files
Duplicated blocks are a common artifact when generated code is pasted or recreated instead of reused. They increase maintenance cost because every future bug fix must be found in multiple locations.
packages/lexical-code-shiki/src/CodeHighlighterShiki.ts:1 qualitylegacy
low Legacy quality quality conf 0.64 Public docs site has no llms.txt
AI coding agents increasingly read llms.txt to find canonical docs and API workflows. Without it, agents are more likely to browse pages repeatedly or use stale instructions.
llms.txt qualitylegacy
low Legacy quality quality conf 0.50 Public web app has no humans.txt
humans.txt is optional, but it gives operators and reviewers a simple place to find ownership, contact, and important public documentation links.
humans.txt qualitylegacy
low Legacy quality quality conf 0.72 Public web app has no sitemap
A sitemap gives search engines, docs crawlers, and AI agents a structured list of public pages. Without one, important docs and product pages are easy to miss.
sitemap.xml qualitylegacy
low Legacy quality quality conf 0.74 robots.txt does not advertise a sitemap
Sitemap directives in robots.txt help crawlers and AI agents find the canonical public URL inventory quickly.
examples/extension-sveltekit-ssr-hydration/static/robots.txt qualitylegacy
{# ── 2026-05-17 Round 14: AI-agent bridge footer ────────────────────── Discoverability: the /agents/voting/ guide + MCP manifest exist but aren't linked from anywhere users actually land. Small, opt-in footer. #}
For AI agents: Voting guide (TP/FP) MCP manifest Stdio wrapper SARIF Integrate Findings queue Vote TP/FP on findings to calibrate the engine.
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