savg-sanitizer is a PHP SVG/XML sanitizer. Prior to version 0.22.0, the sanitization logic in the cleanXlinkHrefs method only searches for lower-case attribute name, which allows to by-pass the isHrefSafeValue check. As a result this allows cross-site scripting or linking to external domains. This issue has been patched in version 0.22.0.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00065.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Svg-sanitizer Project
  • Svg-sanitizer

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Svg-sanitizer Project
  • Svg-sanitizer
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/darylldoyle/svg-sanitizer/commit/5a0a1eaf0c6b0b540dc945fe30c93cf106b357c1 cve-icon cve-icon
https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-22wq-q86m-83fh cve-icon cve-icon
History

Tue, 12 Aug 2025 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Svg-sanitizer Project
Svg-sanitizer Project svg-sanitizer
Vendors & Products Svg-sanitizer Project
Svg-sanitizer Project svg-sanitizer

Tue, 12 Aug 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 12 Aug 2025 16:45:00 +0000

Type Values Removed Values Added
Description savg-sanitizer is a PHP SVG/XML sanitizer. Prior to version 0.22.0, the sanitization logic in the cleanXlinkHrefs method only searches for lower-case attribute name, which allows to by-pass the isHrefSafeValue check. As a result this allows cross-site scripting or linking to external domains. This issue has been patched in version 0.22.0.
Title svg-sanitizer By-Passing Attribute Sanitization
Weaknesses CWE-601
CWE-79
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-08-12T17:48:05.000Z

Reserved: 2025-08-07T18:27:23.307Z

Link: CVE-2025-55166

cve-icon Vulnrichment

Updated: 2025-08-12T17:47:55.276Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-12T17:15:39.667

Modified: 2025-08-13T17:34:12.350

Link: CVE-2025-55166

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-08-12T19:53:19Z