Vulnerability details

CVE-2026-27701

live-codes livecodes

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

CVSS 4.0

8.8High

Official 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.

CVSS scores

Score	Version	Source	Vector
8.8High	4.0	CVEProject cvelistV5 (CNA) (GitHub_M)	`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`

Affected products

Vendor	Product	Versions	Source
live-codes	livecodes	< e151c64c2bd80d2d53ac1333f1df9429fe6a1a11	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-02-25
Last updated: 2026-02-27
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.26%

Probability of exploitation in 30 days

18.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-94
Improper Control of Generation of Code ('Code Injection')