CVE-2025-40893CWE-79

HTML injection in Asset List in Guardian/CMC before 25.5.0

Medium · published December 18, 2025

CVSS v4.0
5.3
EPSS
0%
Percentile
8.8
In the wild
Unconfirmed
What it is

A Stored HTML Injection vulnerability was discovered in the Asset List functionality due to improper validation of network traffic data. An unauthenticated attacker can send specially crafted network packets to inject HTML tags into asset attributes. When a victim views the affected assets in the Asset List (and similar functions), the injected HTML renders in their browser, enabling phishing and possibly open redirect attacks. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00195 · 8.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-12-18T13:17Z
EPSS history
Timeline
  • 18 DEC 13:17Z
    HTML injection in Asset List in Guardian/CMC before 25.5.0
    cvelistv5