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.
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Affected Vendors & Products
References
History
Sun, 20 Sep 2026 03:30:00 +0000
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ssvc
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Fri, 18 Sep 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
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Shortpixel
Shortpixel shortpixel Image Optimizer – Optimize Images, Convert Webp & Avif Wordpress Wordpress wordpress |
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| Vendors & Products |
Shortpixel
Shortpixel shortpixel Image Optimizer – Optimize Images, Convert Webp & Avif Wordpress Wordpress wordpress |
Fri, 18 Sep 2026 04:00:00 +0000
Status: PUBLISHED
Assigner: Wordfence
Published: 2026-09-18T03:38:12.820Z
Updated: 2026-09-18T14:31:42.846Z
Reserved: 2026-07-24T14:41:24.795Z
Link: CVE-2026-17086
Updated: 2026-09-18T14:29:40.713Z
Status : Deferred
Published: 2026-09-18T04:17:28.900
Modified: 2026-09-18T15:17:06.153
Link: CVE-2026-17086
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