What is GHSA-34c3-hq82-r6qj?

GHSA-34c3-hq82-r6qj is a security advisory published by GitHub Security Advisories with Medium severity. REDAXO before 5.21.4 contains a stored cross-site scripting vulnerability that allows content...

Which CVE IDs does GHSA-34c3-hq82-r6qj cover?

GHSA-34c3-hq82-r6qj covers the following CVE IDs: CVE-2026-116900. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-34c3-hq82-r6qj?

GHSA-34c3-hq82-r6qj has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-34c3-hq82-r6qjMediumCVSS 5.4

REDAXO before 5.21.4 contains a stored cross-site scripting vulnerability that allows content...

Vendor

GitHub Security Advisories

Published

October 27, 2026

Last Modified

October 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-116900 →

📋 Description

REDAXO before 5.21.4 contains a stored cross-site scripting vulnerability that allows content editors to inject HTML by storing unescaped values rendered by media, medialist, link and linklist widgets. Attackers can submit crafted REX_INPUT_MEDIA or REX_INPUT_LINK values that break out of the value attribute, executing script in administrators' backend sessions to hijack accounts.

🔗 References (4)

https://github.com/redaxo/core/security/advisories/GHSA-5wmj-5x79-rr87
https://nvd.nist.gov/vuln/detail/CVE-2026-116900
https://www.vulncheck.com/advisories/redaxo-before-5.21.4-stored-xss-via-media-and-link-input-widgets
https://github.com/advisories/GHSA-34c3-hq82-r6qj