Enable SVG, WebP & ICO Upload <= 1.1.5 - Authenticated (Author+) Stored Cross-Site Scripting via SVG File Upload
- ID
- WPSEC-2026-1678
- Plugin
- Enable SVG, WebP, and ICO Upload (enable-svg-webp-ico-upload)
- Affected
- all versions before 1.1.6
- Remediation
- Update to 1.1.6 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-27
- Attack surface
- Enable SVG, WebP & ICO Upload on WPSec AttackSurface
- Fix released
- Published
Description
The Enable SVG, WebP, and ICO Upload plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG file uploads in all versions up to, and including, 1.1.5. This is due to insufficient sanitization. The SVG sanitizer ran only when a file's content was detected as SVG, so a .svg file with non-SVG markup (for example an XHTML document) was stored unsanitized. The sanitizer was also attached only to the wp_handle_upload_prefilter hook, so files uploaded through wp_handle_sideload (for example a raw-body upload to the REST API media endpoint) were never sanitized. This makes it possible for authenticated attackers, with Author-level access and above, to upload malicious SVG files that execute arbitrary web scripts whenever a user accesses the uploaded file.
References
- https://wpsec.com/vuln/WPSEC-2026-1678/
- https://plugins.svn.wordpress.org/enable-svg-webp-ico-upload/tags/1.1.6/
- https://wordpress.org/plugins/enable-svg-webp-ico-upload/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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