Files
hyperframes/skills/hyperframes-creative/scripts
WaterrrForeverandClaude Opus 4.8 535297280a fix(skills): clear two Snyk Fails and harden the network + supply-chain surface (#1804)
* fix(skills): clear Snyk findings and harden supply-chain surface

Address the security-audit findings on the published skills with no change to
any skill's behaviour.

- media-use: resolve.test.mjs runs resolve.mjs via execFileSync with an argv
  array instead of execSync(`node … "${tmp}" …`), removing the command-injection
  (CWE-78) sink that drove the Snyk Fail.
- music-to-video: replace dynamic `element.innerHTML = <var>` with a setSvg()
  helper (DOMParser image/svg+xml + importNode, text fallback) in the
  intro-kinetic-cascade and logo-split-lockup-pulse frame templates, clearing the
  DOM-XSS (CWE-79) Snyk Fail. Renders identical SVG.
- pr-to-video: fetch-people-avatars.mjs refuses any avatar URL that is not https
  on a GitHub avatar host (SSRF guard) and only writes under the project dir
  (path-traversal guard); best-effort, always-exit-0 behaviour is unchanged.
- embedded-captions: pin `uvx --from whisperx==3.8.6` (overridable via
  $WHISPERX_VERSION) so transcription no longer resolves "latest" at runtime.
- gsap: add Subresource Integrity (integrity + crossorigin) to the 8 render-time
  CDN GSAP <script> tags across embedded-captions, music-to-video,
  faceless-explainer, pr-to-video and product-launch-video.
- hyperframes-animation / hyperframes-creative: document package-loader's
  defense-in-depth and note that the installLine strings are display-only.

Verified: media-use resolve (12/12), probe injection (1/1) and manifest (19/19)
tests pass; avatar host-allowlist checks pass; all changed JS passes node --check
and oxfmt.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(skills): clarify product-launch-video vs website-to-video routing

Sharpen the router's product-vs-site decision in hyperframes/SKILL.md: the
split is now "is the site selling a product?" — yes (SaaS / app / product /
company site) → /product-launch-video (a promo; the default for any commercial
URL, even if the site is only named); no, or the user just wants the site shown
as-is (portfolio / blog / docs / personal / event) → /website-to-video (a tour).
Updates the workflow table, the disambiguation bullet, and both workflows'
Input/Output blurbs to match.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* style(skills): satisfy oxfmt in the two music-to-video templates

The CI Format job runs `oxfmt --check .`, which also formats embedded <script> in .html. Reflow the setSvg() blocks added for the DOM-XSS fix to oxfmt's wrapping — no logic change. Regenerate the music-to-video manifest hash to match.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(skills): sanitize SVG in music-to-video templates (real CWE-79 fix)

Addresses @Magi's review: the previous setSvg() only swapped the sink
(innerHTML → DOMParser + importNode) but did NOT sanitize, so active SVG
content still executed on insertion into the live document. Verified in
headless Chrome that the old shape fired both an svg `onload` handler and an
inline `<script>`.

setSvg() now runs a default-deny cleanSvg() over the parsed tree before it ever
enters the document: only an allow-list of inert drawing elements
(svg/g/path/line/rect/circle/… ) and presentation attributes
(d/fill/stroke/viewBox/…) survives. Every other element (`<script>`, `<image>`,
`<use>`, `<foreignObject>`, `<a>`, `<animate>`, …), every `on*` handler, and
href/xlink:href/style are stripped — on the root node too. Non-SVG or malformed
input still falls back to textContent.

Trusted content (the bundled icon library + the default spark/cloud marks)
renders byte-identically; only hostile markup in vars.icon / leftMark / rightMark
is neutralized.

Browser-verified (headless Chrome, both templates' helper):
  old setSvg → fired ["script","onload"]
  new setSvg → fired []  · trusted icon still renders · 0 danger nodes · 0 on* attrs

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-01 12:39:42 +08:00
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