CVE-2024-8661

MEDIUM EPSS 33.3%
Published Sep 16, 20241y ago · Modified Jun 17, 20262w ago
4.6 CVSS 4.0
Medium
Find Similar
Published Sep 16, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
4.6
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
33.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 2

VendorProductVersionRange
concretecmsconcrete_cms* <8.5.19
concretecmsconcrete_cms*≥9.0  –  <9.3.4

References 4

  • documentation.concretecms.org https://documentation.concretecms.org/9-x/developers/introduction/version-history/934-release-notes
    Release Notes
  • documentation.concretecms.org https://documentation.concretecms.org/developers/introduction/version-history/8519-release-notes
    Release Notes
  • github.com https://github.com/concretecms/concretecms/commit/ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4
    Patch
  • github.com https://github.com/concretecms/concretecms/pull/12204
    Patch

Remediation

  • github.com https://github.com/concretecms/concretecms/commit/ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4
    Patch
  • github.com https://github.com/concretecms/concretecms/pull/12204
    Patch