CVE-2024-4350CWE-79

Concrete CMS version 9 below 9.3.3 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer

Medium · published August 9, 2024

CVSS v4.0
5.1
EPSS
0%
Percentile
41.4
In the wild
Unconfirmed
What it is

Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation. The Concrete CMS security team gave this vulnerability a CVSS v4 score of 5.1 with vector https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Thanks, m3dium for reporting. (CNA updated this risk rank on 17 Jan 2025 by lowering the AC based on CVSS 4.0 documentation that access privileges should not be considered for AC)

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00492 · 41.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2024-08-09T00:37Z
EPSS history
Timeline
  • 09 AUG 00:37Z
    Concrete CMS version 9 below 9.3.3 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer
    cvelistv5