CVE-2026-13340
SVG Support < 2.5.17 - Author+ Stored XSS via .svgz Sanitization Bypass
- State
- Published
- Severity
- 6.1 Medium
- Published
- Aug 3, 2026
- Updated
- Aug 3, 2026
- Reserved
- Jun 25, 2026
Description
The SVG Support WordPress plugin before 2.5.17 does not apply its SVG sanitisation to uploaded files using the .svgz extension, even though it registers and serves them as SVG, allowing a user permitted to upload SVGs (such as an Author once granted upload access) to store a script-bearing file that executes in the browser of anyone who later views it, including an administrator.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
SVG SupportUnknown |
|
References
- https://wpscan.com/vulnerability/819ae1bd-3552-4e2f-a95a-0069852d745f/exploitvdb-entrytechnical-description
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.