CVE-2026-27701CWE-94

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

High · published February 25, 2026

CVSS v4.0
8.8
EPSS
0%
Percentile
31.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
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
EPSS
0.00387 · 31.6th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-02-25T15:06Z
EPSS history
Timeline
  • 25 FEB 15:06Z
    LiveCodes vulnerable to JavaScript Injection via untrusted PR title in i18n-update-pull workflow
    cvelistv5