CVE-2024-8661

Concrete CMS version 9.0.0 to 9.3.3 and below 8.5.19 are vulnerable to Stored XSS in the "Next&Previous Nav" block

Description

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.

Category

4.6
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.07%
Affected: Concrete CMS Concrete CMS
Published at:
Updated at:

References

Link Tags
https://documentation.concretecms.org/9-x/developers/introduction/version-history/934-release-notes release notes
https://documentation.concretecms.org/developers/introduction/version-history/8519-release-notes release notes
https://github.com/concretecms/concretecms/pull/12204 patch
https://github.com/concretecms/concretecms/commit/ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4 patch

Frequently Asked Questions

What is the severity of CVE-2024-8661?
CVE-2024-8661 has been scored as a medium severity vulnerability.
How to fix CVE-2024-8661?
To fix CVE-2024-8661, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-8661 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-8661 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-8661?
CVE-2024-8661 affects Concrete CMS Concrete CMS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.