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.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-8618 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

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:

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

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T15:26:25Z