Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 22 May 2026 17:30:00 +0000
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ssvc
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Fri, 22 May 2026 16:15:00 +0000
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Concretecms
Concretecms concrete Cms |
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Concretecms
Concretecms concrete Cms |
Fri, 22 May 2026 14:30:00 +0000
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| Description | Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting. | |
| Title | Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in atomik theme | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: ConcreteCMS
Published:
Updated: 2026-05-22T17:08:17.411Z
Reserved: 2026-05-11T17:02:39.581Z
Link: CVE-2026-8353
Updated: 2026-05-22T17:08:06.722Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-05-22T16:00:13Z
Weaknesses