CVE-2026-15345 Missing authorization in ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization
Authenticated subscribers can modify third-party plugin settings and API keys due to missing authorization checks in the ShortPixel Adaptive Images plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15345?
CVE-2026-15345 is a medium-severity missing authorization vulnerability in ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization, published on 16 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.11.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify configuration options of third-party plugins including ShortPixel Image Optimizer, Autoptimize, WP Rocket, Imagify, and LiteSpeed Cache, as well as the plugin's own API key and account binding. Exploitation requires the respective third-party plugins to be installed, as the impact against those plugins' settings is only reachable when those plugins are present.
Weakness: CWE-862
Which versions are affected by CVE-2026-15345?
How do I fix CVE-2026-15345?
No fix has been published for CVE-2026-15345 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-15345 being exploited?
There is no known exploitation of CVE-2026-15345 in the wild and no public exploit code.
Sources
Also known as GHSA-6c4v-hv9q-25jc.