CVE-2026-61511
vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5_Template_Runtime::runMaths() method wi
CVSS
9.8
Crítico
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 27 jul 2026 · Última mod.: 27 jul 2026 · CWE-95
Sin historial EPSS suficiente todavía.
vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5_Template_Runtime::runMaths() method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenav[pagenumber] parameter. Attackers can exploit the insufficiently restrictive regex filter by using phpfuck-style encoding with permitted characters to inject and execute arbitrary PHP code via the unauthenticated ajax/render template route without any authentication.
- forum.vbulletin.comhttps://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4509358-security-patch-released-for-vbulletin-6-2-1-6-2-0-and-6-1-6
- forum.vbulletin.comhttps://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4509404-vbulletin-6-2-2-is-available
- karmainsecurity.comhttps://karmainsecurity.com/KIS-2026-13
- ssd-disclosure.comhttps://ssd-disclosure.com/vbulletin-runtime-template-runmaths-preauth-rce/
- www.vulncheck.comhttps://www.vulncheck.com/advisories/vbulletin-eval-injection-rce-via-vb5-template-runtime-php