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Vulnerabilities

Security fix · CVE-2025-55166

savg-sanitizer is a PHP SVG/XML sanitizer.

Published Aug 12, 2025 · catalog updated Aug 12, 2025 · savg-sanitizer is a PHP

Check this week

CVE-2025-55166 is not in CISA KEV. FIRST estimates a 45.00% chance of exploitation in the next 30 days. Check whether you run savg-sanitizer is a PHP.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (savg-sanitizer is a PHP).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
45.00%
Remediation
Version ranges on file
Affected products
vendor darylldoyle svg-sanitizer < 0.22.0

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor darylldoyle svg-sanitizer < 0.22.0< 0.22.0

How to fix CVE-2025-55166

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-55166 is not in CISA KEV. FIRST estimates a 45.00% chance of exploitation in the next 30 days. Check whether you run savg-sanitizer is a PHP.

Which versions are affected?

Compare what you have installed with darylldoyle svg-sanitizer < 0.22.0 < 0.22.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 45.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 12, 2025 · EUVD

    Detected

    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.

  2. Aug 12, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-55166

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-24263

    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 exte

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Aug 12, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.