CVE-2026-17086

The ShortPixel Image Optimizer WordPress plugin (versions

CVE-2026-17086 ShortPixel Image Optimizer <= 6.5.5 - Authenticated (Author+) PHP Object Injection via Nested JSON Post Content

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...

PT-2026-95228

Name of the Vulnerable Software and Affected Versions ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF versions prior to 6.5.6 Description The plugin is susceptible to PHP Object Injection through the deserialization of untrusted input. This allows authenticated attackers with...

CVE-2026-17086: Deserialization of Untrusted Data

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...

100,000 WordPress Sites Exposed to Remote Code Execution via PHP Object Injection Vulnerability Found by Wordfence Argus in Tutor LMS

On August 23rd, 2026, Wordfence Argus, our AI research agent specializing in complex vulnerability chains, discovered a PHP Object Injection vulnerability in Tutor LMS, a WordPress e-learning plugin active on more than 100,000 websites. This vulnerability allows any authenticated attacker with...

CVE-2026-76834

b2evolution CMS versions 6.7.8 through 7.2.5 contain an incomplete fix for CVE-2016-8901: the function param_check_serialized_array() fails to reject payloads using negative integer array keys . Unauthenticated attackers can submit crafted serialized PHP objects via POST to htsrv/call_plugin.php,...

CVE-2026-76834 b2evolution CMS 6.7.8 through 7.2.5 Object Injection via Negative Integer Array Key

b2evolution CMS versions 6.7.8 through 7.2.5 contain an incomplete fix for CVE-2016-8901 where the serialized-array object check in paramcheckserializedarray fails to reject payloads with negative integer array keys. Unauthenticated attackers can submit crafted serialized PHP objects via POST...

CVE-2026-76834 b2evolution CMS 6.7.8 through 7.2.5 Object Injection via Negative Integer Array Key

b2evolution CMS versions 6.7.8 through 7.2.5 contain an incomplete fix for CVE-2016-8901 where the serialized-array object check in paramcheckserializedarray fails to reject payloads with negative integer array keys. Unauthenticated attackers can submit crafted serialized PHP objects via POST...

CVE-2026-76834 b2evolution CMS 6.7.8 through 7.2.5 Object Injection via Negative Integer Array Key

b2evolution CMS versions 6.7.8 through 7.2.5 contain an incomplete fix for CVE-2016-8901 where the serialized-array object check in paramcheckserializedarray fails to reject payloads with negative integer array keys. Unauthenticated attackers can submit crafted serialized PHP objects via POST...

WordPress ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin <= 6.5.5 - Authenticated (Author+) PHP Object Injection vulnerability

Authenticated Author+ PHP Object Injection vulnerability discovered by Josh Bolding in WordPress Plugin ShortPixel Image Optimizer versions = 6.5.5...

Security Bulletin: A vulnerability in logback-core-1.3.14.jar found in IBM Devops Code ClearCase

Summary A vulnerability in logback-core-1.3.14.jar found in IBM Devops Code ClearCase CVE-2026-9828 Vulnerability Details CVEID:CVE-2026-9828 DESCRIPTION: Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core HardenedObjectInputStream logback-core modules allows Obje...

CVE-2026-91939

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize without allowedclasses restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads ...

CVE-2026-91939 Cotonti 1.0.0 Comments Plugin PHP Object Injection via ci Parameter

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize without allowedclasses restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads ...

CVE-2026-91939 Cotonti 1.0.0 Comments Plugin PHP Object Injection via ci Parameter

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize without allowedclasses restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads ...

CVE-2026-91939 Cotonti 1.0.0 Comments Plugin PHP Object Injection via ci Parameter

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize without allowedclasses restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads ...

EUVD-2026-80000

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize without allowedclasses restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads ...

CVE-2026-91939

Cotonti 1.0.0 Comments plugin passes the ci GET parameter directly to unserialize() without an allowed_classes restriction. This allows unauthenticated attackers to inject arbitrary PHP objects via crafted serialized payloads, triggering gadget chains that can lead to database manipulation or rem...

Security Bulletin: IBM Terracotta is affected by Logback vulnerabilities that could allow attackers to exploit conditional configuration file processing

Summary IBM Terracotta uses Logback for logging purposes within the product. Vulnerability Details CVEID:CVE-2026-10532 DESCRIPTION: Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core HardenedObjectInputStream logback-core modules allows Object Injection, albeit...

PT-2026-93177

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize without allowed classes restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads...

CVE-2026-91939: Deserialization of Untrusted Data

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize without allowedclasses restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads ...