Skip to content
CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-17086

ShortPixel Image Optimizer <= 6.5.5 - Authenticated (Author+) PHP Object Injection via Nested JSON Post Content

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Wordfence

Description

The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.5.5 via deserialization of untrusted input . This makes it possible for authenticated attackers, with author-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

shortpixel ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF

Default version status: unaffected

  • 0 to ≤ 6.5.5affected

References