What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.8 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-25 · updated 2026-06-17
• Weakness: CWE-94

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

• live-codes livecodes: before e151c64c2bd80d2d53ac1333f1df9429fe6a1a11

References

• https://github.com/live-codes/livecodes/commit/e151c64c2bd80d2d53ac1333f1df9429fe6a1a11
• https://github.com/live-codes/livecodes/security/advisories/GHSA-xh9w-5859-x97j
• https://github.com/live-codes/livecodes/security/advisories/GHSA-xh9w-5859-x97j

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