There is a XXE in W3CSS Validator versions before cssval-20250226 that allows an attacker to use specially-crafted XML objects to coerce server-side request forgery (SSRF).  This could be exploited to read arbitrary local files if an attacker has access to exception messages.
History

Fri, 01 Aug 2025 18:00:00 +0000

Type Values Removed Values Added
First Time appeared W3
W3 css Validator
CPEs cpe:2.3:a:w3:css_validator:*:*:*:*:*:*:*:*
Vendors & Products W3
W3 css Validator
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Fri, 28 Mar 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 28 Mar 2025 14:00:00 +0000

Type Values Removed Values Added
Description There is a XXE in W3CSS Validator versions before cssval-20250226 that allows an attacker to use specially-crafted XML objects to coerce server-side request forgery (SSRF).  This could be exploited to read arbitrary local files if an attacker has access to exception messages.
Weaknesses CWE-611
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published: 2025-03-28T13:48:22.127Z

Updated: 2025-03-28T14:31:48.212Z

Reserved: 2025-02-28T15:27:33.252Z

Link: CVE-2025-1781

cve-icon Vulnrichment

Updated: 2025-03-28T14:31:44.655Z

cve-icon NVD

Status : Analyzed

Published: 2025-03-28T14:15:19.687

Modified: 2025-08-01T17:54:11.577

Link: CVE-2025-1781

cve-icon Redhat

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