CVE-2026-13340mediumCWE-79

CVE-2026-13340: medium-severity vulnerability in SVG Support

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

Published

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.1epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
Unknown · SVG Support
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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CVE-2022-1755MEDIUMSVG Support < 2.5 - Author+ Stored Cross-Site ScriptingEPSS 0.7%