---
id: CVE-2026-107380
title: savg-sanitizer is a PHP SVG/XML sanitizer
summary: >-
  savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer's
  isHrefSafeValue() validates an SVG href after XML DTD entity expansion, but
  saveXML() serializes the original entity reference after removing the DTD
  declaration.…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: darylldoyle
product: svg-sanitizer
affected:
  - svg-sanitizer < 1.0.0
patched:
  - enshrined/svg-sanitize 1.0.0
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:35:53.890'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107380'
references:
  - url: >-
      https://github.com/darylldoyle/svg-sanitizer/commit/23877db7e76f1e1df5c3e65ab30239219c3d2867
    label: security-advisories@github.com
  - url: 'https://github.com/darylldoyle/svg-sanitizer/releases/tag/1.0.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-9rjx-3jch-6vjf
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107380'
  - url: 'https://github.com/advisories/GHSA-9rjx-3jch-6vjf'
tags:
  - nvd
  - cve.org
  - ghsa
  - composer
aliases:
  - GHSA-9rjx-3jch-6vjf
ecosystem: composer
ingestedAt: '2026-10-08T18:58:11.314Z'
---

## Overview

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer's isHrefSafeValue() validates an SVG href after XML DTD entity expansion, but saveXML() serializes the original entity reference after removing the DTD declaration. A crafted entity such as Tab can appear to the sanitizer as a safe fragment prefix while HTML5 Named Character Reference resolution during inline HTML rendering later converts the surviving reference to whitespace, exposing a javascript: URL. When an application embeds the sanitized SVG inline, a user who activates the link can cause script to execute in the embedding page's origin. This issue is fixed in version 1.0.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-107380)

Affected packages:

- `enshrined/svg-sanitize <= 0.22.0`

Patched in:

- `enshrined/svg-sanitize 1.0.0`

Source: https://github.com/advisories/GHSA-9rjx-3jch-6vjf