CVE-2026-45551

{"id": "CVE-2026-45551", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45551", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-29T13:16:28.023941Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "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"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "Intermesh", "product": "groupoffice", "versions": [{"status": "affected", "version": ">= 26.0.1, < 26.0.25"}, {"status": "affected", "version": ">= 25.0.1, < 25.0.1005"}, {"status": "affected", "version": "< 6.8.165"}]}]}], "published": "2026-05-29T13:16:22.917", "references": [{"url": "https://github.com/Intermesh/groupoffice/security/advisories/GHSA-9w92-p32g-g99p", "source": "security-advisories@github.com"}, {"url": "https://github.com/Intermesh/groupoffice/security/advisories/GHSA-9w92-p32g-g99p", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "Group-Office is an enterprise customer relationship management and groupware tool. Prior to 26.0.25, 25.0.100, and 6.8.165, GroupOffice allows authenticated users to persist arbitrary legacy settings for any user_id via index.php?r=core/saveSetting. A separate client-side sink in the email module injects the email_font_size setting directly into JavaScript without escaping. By combining these two issues, any low-privileged authenticated user can overwrite an administrator's email_font_size setting with a JavaScript payload and trigger stored XSS in the administrator's browser when the GroupOffice web client loads views/Extjs3/modulescripts.php. This vulnerability is fixed in 26.0.25, 25.0.100, and 6.8.165."}, {"lang": "es", "value": "Group-Office es una herramienta empresarial de gesti\u00f3n de relaciones con el cliente y groupware. Antes de las versiones 26.0.25, 25.0.100 y 6.8.165, GroupOffice permite a los usuarios autenticados persistir configuraciones heredadas arbitrarias para cualquier user_id a trav\u00e9s de index.php?r=core/saveSetting. Un sumidero separado del lado del cliente en el m\u00f3dulo de correo electr\u00f3nico inyecta la configuraci\u00f3n email_font_size directamente en JavaScript sin escapar. Al combinar estos dos problemas, cualquier usuario autenticado con bajos privilegios puede sobrescribir la configuraci\u00f3n email_font_size de un administrador con una carga \u00fatil de JavaScript y activar XSS almacenado en el navegador del administrador cuando el cliente web de GroupOffice carga views/Extjs3/modulescripts.php. Esta vulnerabilidad se corrige en las versiones 26.0.25, 25.0.100 y 6.8.165."}], "lastModified": "2026-07-21T12:10:00.090", "sourceIdentifier": "security-advisories@github.com"}