GHSA-mm5f-5rqw-574f

ghsaUSosv

Concrete CMS has a stored Cross-site Scripting (XSS) vulnerability

view advisory published 2026-03-04Licence: CC-BY-4.0

In Concrete CMS below version 9.4.8, A stored Cross-site Scripting (XSS) vulnerability exists in the search block where page names and content are rendered without proper HTML encoding in search results. This allows authenticated, rogue administrators to inject malicious JavaScript through page names that executes when users search for and view those pages in search results. The Concrete CMS security team thanks zolpak for reporting.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-3244US	medium	—	—	—

references

External citations — patches, advisories, analysis.

https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notesWEB
https://github.com/concretecms/concretecmsPACKAGE
https://github.com/concretecms/concretecms/pull/12826WEB
https://nvd.nist.gov/vuln/detail/CVE-2026-3244ADVISORY

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