CVE-2026-129134

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-129134", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-13T16:01:04.767Z", "datePublished": "2026-11-13T16:23:34.805Z", "dateUpdated": "2026-11-13T16:23:34.805Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-13T16:23:34.805Z"}, "datePublic": "2026-11-12T00:00:00.000Z", "title": "MRBS before 1.13.0 Password Reset Poisoning via Host Header Injection", "descriptions": [{"lang": "en", "value": "MRBS before 1.13.0 contains a password reset poisoning vulnerability that allows unauthenticated attackers to redirect reset links by forging the Host header when $url_base is unset. Attackers can request a reset for a victim so AuthDb::notifyUser() emails a link pointing to their host, capturing the reset key when opened to take over accounts including administrators."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Weak Password Recovery Mechanism for Forgotten Password", "cweId": "CWE-640", "type": "CWE"}]}], "affected": [{"vendor": "meeting-room-booking-system", "product": "mrbs-code", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "lessThan": "1.13.0", "versionType": "semver"}], "packageURL": "pkg:github/meeting-room-booking-system/mrbs-code"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.6, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/meeting-room-booking-system/mrbs-code/security/advisories/GHSA-73cv-hx7f-9v27", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-73cv-hx7f-9v27)"}, {"url": "https://github.com/meeting-room-booking-system/mrbs-code/commit/92f6f5610072ddb9e1b38074c410fc8be56947ed", "tags": ["patch"]}, {"url": "https://github.com/meeting-room-booking-system/mrbs-code/releases/tag/v1.13.0", "tags": ["release-notes"], "name": "mrbs-code v1.13.0 Release Notes"}, {"url": "https://github.com/meeting-room-booking-system/mrbs-code/blob/299686ed64174a66448699f5ca0fb5e0e0ea9faa/web/lib/MRBS/Auth/AuthDb.php#L613", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: MRBS before 1.13.0 Password Reset Poisoning via Host Header Injection", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/mrbs-before-1.13.0-password-reset-poisoning-via-host-header-injection"}], "credits": [{"lang": "en", "value": "leediay153 from Viettel Post", "type": "finder"}, {"lang": "en", "value": "John Beranek", "type": "remediation developer"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:github/meeting-room-booking-system/mrbs-code", "product": "mrbs-code", "vendor": "meeting-room-booking-system", "versions": [{"lessThan": "1.13.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "MRBS before 1.13.0 contains a password reset poisoning vulnerability that allows unauthenticated attackers to redirect reset links by forging the Host header when $url_base is unset. Attackers can request a reset for a victim so AuthDb::notifyUser() emails a link pointing to their host, capturing the reset key when opened to take over accounts including administrators."}], "id": "CVE-2026-129134", "lastModified": "2026-11-13T17:17:31.323", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-11-13T17:17:31.323", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/meeting-room-booking-system/mrbs-code/blob/299686ed64174a66448699f5ca0fb5e0e0ea9faa/web/lib/MRBS/Auth/AuthDb.php#L613"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/meeting-room-booking-system/mrbs-code/commit/92f6f5610072ddb9e1b38074c410fc8be56947ed"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/meeting-room-booking-system/mrbs-code/releases/tag/v1.13.0"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/meeting-room-booking-system/mrbs-code/security/advisories/GHSA-73cv-hx7f-9v27"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/mrbs-before-1.13.0-password-reset-poisoning-via-host-header-injection"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-640"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

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