vBulletin 6.x - Remote Code Execution

vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contain an eval injection vulnerability caused by insufficiently restrictive regex filtering in vB5TemplateRuntime::runMaths, letting unauthenticated remote attackers execute arbitrary PHP code via the pagenavpagenumber parameter in ajax/render...

VulnCheck KEV: CVE-2026-61511

vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5TemplateRuntime::runMaths method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenavpagenumber...

Exploit for CVE-2026-61511

CVE-2026-61511 – Proof of Concept Educational and defen...

CVE-2026-61511 vBulletin < 6.2.2 Eval Injection RCE via vb5/template/runtime.php

vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5TemplateRuntime::runMaths method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenavpagenumber...

CVE-2026-61511

vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5TemplateRuntime::runMaths method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenavpagenumber...

CVE-2026-61511

vBulletin software versions 5.0.0 – 5.7.5 and 6.0.0 – 6.2.1 are vulnerable to an eval injection flaw in the vB5_Template_Runtime::runMaths() method. Due to insufficiently restrictive regex filtering, unauthenticated remote attackers can execute arbitrary PHP code by sending crafted POST requests ...

EUVD-2026-49312

vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5TemplateRuntime::runMaths method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenavpagenumber...

CVE-2026-61511 vBulletin < 6.2.2 Eval Injection RCE via vb5/template/runtime.php

vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5TemplateRuntime::runMaths method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenavpagenumber...