What is GHSA-5h77-jjr5-889r?

GHSA-5h77-jjr5-889r is a security advisory published by GitHub Security Advisories with High severity. Grav Lightbox Gallery plugin 1.1.0 before 1.3.2 on Grav 2.x calls any medium method named in...

Which CVE IDs does GHSA-5h77-jjr5-889r cover?

GHSA-5h77-jjr5-889r covers the following CVE IDs: CVE-2026-124434. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5h77-jjr5-889r?

GHSA-5h77-jjr5-889r has a CVSS v3 base score of 7.1, published by GitHub Security Advisories.

GHSA-5h77-jjr5-889rHighCVSS 7.1

Grav Lightbox Gallery plugin 1.1.0 before 1.3.2 on Grav 2.x calls any medium method named in...

Vendor

GitHub Security Advisories

Published

November 8, 2026

Last Modified

November 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-124434 →

📋 Description

Grav Lightbox Gallery plugin 1.1.0 before 1.3.2 on Grav 2.x calls any medium method named in image, thumb or thumb_options shortcode values without core's allowed media action check. A page editor can chain addMetaFile with value, toYaml or toJson to read server-readable YAML files, such as account password hashes, 2FA secrets and API keys, into a publicly viewable page.

🔗 References (4)

https://github.com/getgrav/grav/security/advisories/GHSA-jq4h-4q3q-hr32
https://nvd.nist.gov/vuln/detail/CVE-2026-124434
https://www.vulncheck.com/advisories/grav-lightbox-gallery-1.1.0-before-1.3.2-file-read-via-shortcode-media-actions
https://github.com/advisories/GHSA-5h77-jjr5-889r