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CVE-2026-3240
Published: Mar 4, 2026
Modified: Mar 4, 2026
PUBLISHED
Description
In Concrete CMS below version 9.4.8, a user with permission to edit a page with element Legacy form can perform a stored XSS attack towards high-privilege accounts via the Question field. 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 minhnn42, namdi and quanlna2 from VCSLab-Viettel Cyber Security for reporting.
| Vendor | Product | Versions |
|---|---|---|
Concrete CMS | Concrete CMS | affected 5 - < 9.4.8 |
Weaknesses (CWE)
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