CVE-2025-11378

ShortPixel Image Optimizer <= 6.3.4 - Authenticated (Contributor+) Settings Import/Export

5.4 Medium

The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'shortpixel_ajaxRequest' AJAX action in all versions up to, and including, 6.3.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to export and import site options.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.31%Up 0.3 points since Oct 18, 2025

What each source reports

CVE List Score used 5.4

ShortPixel Image Optimizer <= 6.3.4 - Authenticated (Contributor+) Settings Import/Export

Record: CVE-2025-11378
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

EUVDEUVD-2025-34954 5.4

Record: EUVD-2025-34954
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-44j2-7x4f-pq34 5.4

The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is...

Record: GHSA-44j2-7x4f-pq34
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

NVD 5.4

Record: CVE-2025-11378
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

OSV 5.4

ShortPixel Image Optimizer <= 6.3.4 - Authenticated (Contributor+) Settings Import/Export

Record: CVE-2025-11378
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-862
Updated: 2026-11-02

Affected products

shortpixel image optimizer – optimize images, convert webp & avif

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-11378 is a medium vulnerability (CVSS 5.4) in Shortpixel Image Optimizer – Optimize Images, Convert Webp & Avif, published October 18, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 24th percentile. No source names a fixed version.