Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName because updateCollectionAliasExternal bypasses being sanitized. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.0 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting.
Metrics
Affected Vendors & Products
References
History
Fri, 22 May 2026 13:30:00 +0000
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ssvc
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Fri, 22 May 2026 00:15:00 +0000
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Concretecms
Concretecms concrete Cms |
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Concretecms
Concretecms concrete Cms |
Thu, 21 May 2026 22:15:00 +0000
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| Description | Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName because updateCollectionAliasExternal bypasses being sanitized. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.0 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting. | |
| Title | Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: ConcreteCMS
Published: 2026-05-21T21:45:49.849Z
Updated: 2026-05-22T12:54:11.574Z
Reserved: 2026-05-07T18:05:51.056Z
Link: CVE-2026-8139
Updated: 2026-05-22T12:54:08.084Z
Status : Received
Published: 2026-05-21T22:16:49.533
Modified: 2026-05-21T22:16:49.533
Link: CVE-2026-8139
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