CVE-2026-13340 — MEDIUM (6.1)

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-79

References

https://wpscan.com/vulnerability/819ae1bd-3552-4e2f-a95a-0069852d745f/

FAQ

What is CVE-2026-13340?

CVE-2026-13340 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 permitt...

How severe is CVE-2026-13340?

CVE-2026-13340 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13340?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.