CVE-2025-55166: svg-sanitizer Bypasses Attribute Sanitization

CVE-2025-55166 · Severity: medium · CVSS 4 · Published 2025-08-12

svg-sanitizer Bypasses Attribute Sanitization

Technologies: enshrined/svg-sanitize (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2025-55166 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-55166 being exploited in the wild.
How severe is CVE-2025-55166?
Medium severity, with a CVSS score of 4, published 12 August 2025.
Which products and versions are affected?
enshrined/svg-sanitize (Packagist) ECOSYSTEM:introduced=0,fixed=0.22.0.
Is there a fix for CVE-2025-55166?
Yes. enshrined/svg-sanitize (Packagist): upgrade to 0.22.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-55166?
Check whether you run enshrined/svg-sanitize (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • enshrined/svg-sanitize (Packagist): upgrade to 0.22.0 or later
    composer require enshrined/svg-sanitize:^0.22.0

Affected products

  • enshrined/svg-sanitize (Packagist) ECOSYSTEM:introduced=0,fixed=0.22.0

Identifiers

  • CVE-2025-55166
  • GHSA-22wq-q86m-83fh

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