Safe SVG <= 2.5.1 - Authenticated (Author+) Stored Cross-Site Scripting via SVG File Upload
- ID
- WPSEC-2026-1787
- Plugin
- Safe SVG (safe-svg)
- Affected
- all versions before 2.5.2
- Remediation
- Update to 2.5.2 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin High · Affected versions High among sites WPSec scans, 2026-10-27
- Attack surface
- Safe SVG on WPSec AttackSurface
- Fix released
- Published
Description
The Safe SVG plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG file uploads in all versions up to, and including, 2.5.1. This is due to insufficient sanitization in the bundled enshrined/svg-sanitize library (1.0.0), which kept the attributeName attribute on allowed SMIL animation elements such as animateTransform, so an animation could rewrite a link's href into a javascript: URI after sanitization. This makes it possible for authenticated attackers with Author-level access and above, or any role allowed to upload SVG files, to upload SVG files that execute arbitrary web scripts when a user clicks a link in the SVG in a browser that allows this retargeting, such as Safari, whether the file is opened directly or shown inline by the Safe SVG block.
References
- https://wpsec.com/vuln/WPSEC-2026-1787/
- https://plugins.svn.wordpress.org/safe-svg/tags/2.5.2/
- https://wordpress.org/plugins/safe-svg/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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