{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-61511", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-10T15:43:36.627Z", "datePublished": "2026-07-27T12:39:16.085Z", "dateUpdated": "2026-10-14T03:56:22.311Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-28T01:49:52.461Z" }, "title": "vBulletin < 6.2.2 Eval Injection RCE via vb5/template/runtime.php", "descriptions": [ { "lang": "en", "value": "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." } ], "datePublic": "2026-07-27T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-95", "description": "Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')", "type": "CWE" } ] } ], "affected": [ { "defaultStatus": "affected", "vendor": "vBulletin", "product": "vBulletin", "versions": [ { "status": "affected", "version": "5.0.0", "versionType": "semver", "lessThanOrEqual": "5.7.5" }, { "status": "affected", "version": "6.0.0", "versionType": "semver", "lessThanOrEqual": "6.2.1" }, { "status": "unaffected", "version": "6.2.2", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0", "versionEndIncluding": "5.7.5" }, { "vulnerable": true, "criteria": "cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.0", "versionEndIncluding": "6.2.1" } ] } ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.3, "vectorString": "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" } }, { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "CRITICAL", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H" } } ], "references": [ { "url": "https://karmainsecurity.com/KIS-2026-13", "name": "Karma(In)Security Disclosure", "tags": [ "technical-description", "exploit" ] }, { "url": "https://ssd-disclosure.com/vbulletin-runtime-template-runmaths-preauth-rce/", "name": "SSD Secure Disclosure", "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", "name": "6.2.1, 6.2.0, 6.1.6 Security Announcement" }, { "url": "https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4509404-vbulletin-6-2-2-is-available", "name": "6.2.2 Release Notes" }, { "url": "https://www.vulncheck.com/advisories/vbulletin-eval-injection-rce-via-vb5-template-runtime-php", "tags": [ "third-party-advisory" ] } ], "credits": [ { "lang": "en", "value": "Egidio Romano", "type": "finder" } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "vulncheck" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-27T00:00:00+00:00", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-61511" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T03:56:22.311Z" } }, { "title": "CVE Program Container", "references": [ { "url": "http://seclists.org/fulldisclosure/2026/Aug/29" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-08-07T05:32:22.940Z" } } ] } }