{"id":"CVE-2026-61511","aliases":["EUVD-2026-49312","GHSA-43hg-f3wj-j2m6"],"status":"published","title":"vBulletin \u003c 6.2.2 Eval Injection RCE via vb5/template/runtime.php","description":"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.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.05607,"percentile":0.92969,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-95"],"published":"2026-07-27T12:39:16Z","modified":"2026-11-03T22:13:30Z","exploits":[{"source":"pocgithub","id":"HORKimhab/CVE-2026-61511","title":"HORKimhab/CVE-2026-61511","date":"2026-07-28","url":"https://github.com/HORKimhab/CVE-2026-61511"},{"source":"pocgithub","id":"puj790201-lab/cve-2026-61511","title":"puj790201-lab/cve-2026-61511","date":"2026-07-28","url":"https://github.com/puj790201-lab/cve-2026-61511"},{"source":"pocgithub","id":"codeb0ssx/Ultimate-CVE-2026-61511","title":"codeb0ssx/Ultimate-CVE-2026-61511","date":"2026-07-29","url":"https://github.com/codeb0ssx/Ultimate-CVE-2026-61511"},{"source":"pocgithub","id":"tc4dy/CVE-2026-61511-PoC-Exploit","title":"tc4dy/CVE-2026-61511-PoC-Exploit","date":"2026-07-29","url":"https://github.com/tc4dy/CVE-2026-61511-PoC-Exploit"},{"source":"pocgithub","id":"shootcannon/CVE-2026-61511","title":"shootcannon/CVE-2026-61511","date":"2026-07-30","url":"https://github.com/shootcannon/CVE-2026-61511"},{"source":"nuclei","id":"CVE-2026-61511","title":"vBulletin 6.x - Remote Code Execution","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-61511.yaml"}],"products":[{"vendor":"vbulletin","product":"vbulletin"}],"references":[{"url":"https://karmainsecurity.com/KIS-2026-13","tags":["technical-description","exploit"]},{"url":"https://ssd-disclosure.com/vbulletin-runtime-template-runmaths-preauth-rce/","tags":["technical-description","exploit"]},{"url":"https://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"},{"url":"https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4509404-vbulletin-6-2-2-is-available"},{"url":"https://www.vulncheck.com/advisories/vbulletin-eval-injection-rce-via-vb5-template-runtime-php","tags":["third-party-advisory"]},{"url":"http://seclists.org/fulldisclosure/2026/Aug/29"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61511"},{"url":"https://ssd-disclosure.com/vbulletin-runtime-template-runmaths-preauth-rce"},{"url":"https://github.com/advisories/GHSA-43hg-f3wj-j2m6"}],"sources":{"cve":[{"id":"CVE-2026-61511","title":"vBulletin \u003c 6.2.2 Eval Injection RCE via vb5/template/runtime.php","description":"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.","status":"published","published":"2026-07-27T12:39:16.085Z","modified":"2026-11-03T22:13:30.204Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-95"],"updated_at":"2026-11-03T23:33:09.822755Z"}],"euvd":[{"id":"EUVD-2026-49312","description":"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.","status":"published","published":"2026-07-27T12:39:16Z","modified":"2026-11-03T22:13:30Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-03T23:01:34.013136Z"}],"ghsa":[{"id":"GHSA-43hg-f3wj-j2m6","title":"vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the...","description":"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.","status":"published","published":"2026-07-27T15:32:30Z","modified":"2026-08-07T06:31:24Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T15:10:11.041675Z"}],"nvd":[{"id":"CVE-2026-61511","description":"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.","status":"published","published":"2026-07-27T14:16:59.177Z","modified":"2026-11-03T23:17:50.57Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-95"],"updated_at":"2026-11-04T01:48:34.004968Z"}]}}