CVE-2026-3242 — MEDIUM (4.8)

Q: How severe is CVE-2026-3242?

CVE-2026-3242 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-3242?

Check the references section above for vendor advisories and patch information. Affected products include: Concretecms Concrete Cms.

Vulnerability Description

In Concrete CMS below version 9.4.8, a rogue administrator can add stored XSS via the Switch Language block. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector 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. Thanks M3dium for reporting.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Concretecms	Concrete Cms	< 9.4.8

Related Weaknesses (CWE)

CWE-79

References

https://documentation.concretecms.org/9-x/developers/introduction/version-historRelease NotesPatchVendor Advisory
https://github.com/concretecms/concretecms/pull/12826ExploitIssue TrackingVendor Advisory

FAQ

What is CVE-2026-3242?

CVE-2026-3242 is a vulnerability with a CVSS score of 4.8 (MEDIUM). In Concrete CMS below version 9.4.8, a rogue administrator can add stored XSS via the Switch Language block. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vect...

How severe is CVE-2026-3242?

CVE-2026-3242 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3242?

Check the references section above for vendor advisories and patch information. Affected products include: Concretecms Concrete Cms.