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High · 8.8 Public exploit CVE-2026-27701 EUVD-2026-8645

LiveCodes vulnerable to JavaScript Injection via untrusted PR title in i18n-update-pull workflow

Published Feb 25, 2026 · Updated Feb 27, 2026 · Assigned by GitHub_M

Vendor: live-codes Product: livecodes

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.

Affected products

VendorProductAffectedFixed
live-codes livecodes < e151c64c2bd80d2d53ac1333f1df9429fe6a1a11 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • pvharmo2/gha-lab-25b7988758 ★ 0 · Sep 4, 2026

    Authorized security-research reproduction of CVE-2026-27701 / GHSA-xh9w-5859-x97j (live-codes/livecodes @ 8017e01): untrusted PR title interpolated into i18n-update-pull github-script block.

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References