CVE-2026-3244
Concrete CMS has a stored Cross-site Scripting (XSS) vulnerability
EPSS 0.01%
Description
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.
How to fix CVE-2026-3244
To remediate CVE-2026-3244, upgrade the affected package to a fixed version below.
- —upgrade to 9.4.8 or later
Is CVE-2026-3244 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 9.4.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N |