Skip to content

Concrete CMS Stored XSS in the Custom Class page editing

Low severity GitHub Reviewed Published Apr 3, 2024 to the GitHub Advisory Database • Updated Apr 3, 2024

Package

composer concrete5/concrete5 (Composer)

Affected versions

>= 9.0.0RC1, < 9.2.8
< 8.5.16

Patched versions

9.2.8
8.5.16

Description

Concrete CMS version 9 before 9.2.8 and previous versions before 8.5.16 are vulnerable to Stored XSS in the Custom Class page editing. Prior to the fix, a rogue administrator could insert malicious code in the custom class field due to insufficient validation of administrator provided data. The Concrete CMS security team gave this vulnerability a CVSS v3.1 score of 3.1 with a vector of AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator . Thanks Alexey Solovyev for reporting. 

References

Published by the National Vulnerability Database Apr 3, 2024
Published to the GitHub Advisory Database Apr 3, 2024
Reviewed Apr 3, 2024
Last updated Apr 3, 2024

Severity

Low
3.1
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L

Weaknesses

CVE ID

CVE-2024-3179

GHSA ID

GHSA-r7q4-cw9r-vhp4

Source code

Checking history
See something to contribute? Suggest improvements for this vulnerability.