Vulnerability · Published Aug 3, 2026 · Assigned by WPScan

CVE-2026-13340SVG Support < 2.5.17 - Author+ Stored XSS via .svgz Sanitization Bypass

Medium 6.1

In plain English

A medium-severity cross-site scripting in SVG Support from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 83.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	SVG Support	0 – before 2.5.17

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/819ae1bd-3552-4e2f-a95a-0069852d745f/ exploit, vdb-entry, technical-description