CVE-2024-8661
mediumpriority · track · 19EPSS 0.004 · 38 %ileEUUSEPSS · scored 2026-10-27
Concrete CMS versions 9.0.0 to 9.3.3 and below 8.5.19 are vulnerable to Stored XSS in the "Next&Previous Nav" block. A rogue administrator could add a malicious payload by executing it in the browsers of targeted users. The Concrete CMS Security Team gave this vulnerability a CVSS v4 score of 4.6 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N Since the "Next&Previous Nav" block output was not sufficiently sanitized, the malicious payload could be executed in the browsers of targeted users. Thanks, Chu Quoc Khanh for reporting.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1–4.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (6)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-xmxj-v2q8-8qx6Concrete CMS Stored XSS in the "Next&Previous Nav" block2024-09-16ghsa · osvUS
Concrete CMS versions 9.0.0 to 9.3.4 and below 8.5.19 are vulnerable to Stored XSS in the "Next&Previous Nav" block. A rogue administrator could add a malicious payload by executing it in the browsers of targeted users. Since the "Next&Previous Nav" block output was not sufficiently sanitized, the malicious payload could be executed in the browsers of targeted users.
also known as (3)
Other names and identifiers for this entity.
sources
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references (13)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-8661/cnnvd
- https://documentation.concretecms.org/9-x/developers/introduction/version-history/934-release-notescnnvd
- https://documentation.concretecms.org/developers/introduction/version-history/8519-release-notescnnvd
- https://github.com/concretecms/concretecms/commit/ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4cnnvd
- https://github.com/concretecms/concretecms/pull/12204cnnvd
- https://documentation.concretecms.org/9-x/developers/introduction/version-history/934-release-notesenisa_euvd
- https://documentation.concretecms.org/developers/introduction/version-history/8519-release-notesenisa_euvd
- https://github.com/concretecms/concretecms/commit/ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4enisa_euvd
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