CVE-2026-27175

{"id": "CVE-2026-27175", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.2, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-18T22:16:25.263", "references": [{"url": "https://chocapikk.com/posts/2026/majordomo-revisited/", "tags": ["Third Party Advisory", "Exploit"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/sergejey/majordomo/pull/1177", "tags": ["Issue Tracking", "Exploit"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/majordomo-command-injection-in-rcindexphp-via-race-condition", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "MajorDoMo (aka Major Domestic Module) is vulnerable to unauthenticated OS command injection via rc/index.php. The $param variable from user input is interpolated into a command string within double quotes without sanitization via escapeshellarg(). The command is inserted into a database queue by safe_exec(), which performs no sanitization. The cycle_execs.php script, which is web-accessible without authentication, retrieves queued commands and passes them directly to exec(). An attacker can exploit a race condition by first triggering cycle_execs.php (which purges the queue and enters a polling loop), then injecting a malicious command via the rc endpoint while the worker is polling. The injected shell metacharacters expand inside double quotes, achieving remote code execution within one second."}, {"lang": "es", "value": "MajorDoMo (tambi\u00e9n conocido como Major Domestic Module) es vulnerable a la inyecci\u00f3n de comandos del sistema operativo no autenticada a trav\u00e9s de rc/index.php. La variable $param de la entrada del usuario se intercala en una cadena de comandos entre comillas dobles sin saneamiento a trav\u00e9s de escapeshellarg(). El comando se inserta en una cola de la base de datos por safe_exec(), que no realiza ning\u00fan saneamiento. El script cycle_execs.php, que es accesible por la web sin autenticaci\u00f3n, recupera los comandos en cola y los pasa directamente a exec(). Un atacante puede explotar una condici\u00f3n de carrera activando primero cycle_execs.php (que purga la cola y entra en un bucle de sondeo), luego inyectando un comando malicioso a trav\u00e9s del punto final rc mientras el trabajador est\u00e1 sondeando. Los metacaracteres de shell inyectados se expanden dentro de las comillas dobles, logrando la ejecuci\u00f3n remota de c\u00f3digo en un segundo."}], "lastModified": "2026-02-20T20:02:13.103", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7008978E-8DE1-4811-958F-3AFB3847B919"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}