Vulnerability · Published Apr 3, 2024 · Assigned by ConcreteCMS

CVE-2024-3179Concrete CMS version 9 before 9.2.8 and previous versions before 8.5.16 are vulnerable to Stored XSS in the Custom Class page

Low 3.1

In plain English

A low-severity cross-site scripting in Concrete CMS from Concrete CMS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.4%top 70.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistconcrete5/concrete59.2.8GHSA-r7q4-cw9r-vhp4
Packagistconcrete5/concrete58.5.16GHSA-r7q4-cw9r-vhp4

Affected products (as reported)

VendorProductVersions
Concrete CMS Concrete CMS 9.0.0 – before 9.2.85.0.0 – before 8.5.16

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L

References