{"id":"CVE-2026-27823","state":"PUBLISHED","title":"Remote Code Execution Vulnerability in EGroupware","description":"A vulnerability has been identified in EGroupware that may lead to Remote Code Execution (RCE). The issue allows an authenticated attacker to execute arbitrary commands on the server. If user self-registration is enabled, the vulnerability may be exploitable without prior authentication. The vulnerability stems from improper authorization checks combined with a file write primitive and an arbitrary file read vulnerability, which together enable full system compromise. This has been patched in versions 26.2.20260224 and 23.1.20260224.","publishedAt":"2026-07-20T15:24:51.684Z","updatedAt":"2026-07-21T15:47:35.591Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["EGroupware egroupware"],"affected":[{"vendor":"EGroupware","product":"egroupware","versions":[{"version":"<= 26.2.20260216","status":"affected"},{"version":"<= 23.1.20260131","status":"affected"}]}],"references":["https://github.com/EGroupware/egroupware/security/advisories/GHSA-h9qx-v5xp-ph8p"],"weaknesses":["CWE-285"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/27xxx/CVE-2026-27823.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27823","state":"PUBLISHED","datePublished":"2026-07-20T15:24:51.684Z","dateUpdated":"2026-07-21T15:47:35.591Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-24T02:32:39.799Z"},"containers":{"cna":{"title":"Remote Code Execution Vulnerability in EGroupware","descriptions":[{"lang":"en","value":"A vulnerability has been identified in EGroupware that may lead to Remote Code Execution (RCE). The issue allows an authenticated attacker to execute arbitrary commands on the server. If user self-registration is enabled, the vulnerability may be exploitable without prior authentication. The vulnerability stems from improper authorization checks combined with a file write primitive and an arbitrary file read vulnerability, which together enable full system compromise. This has been patched in versions 26.2.20260224 and 23.1.20260224."}],"affected":[{"vendor":"EGroupware","product":"egroupware","versions":[{"version":"<= 26.2.20260216","status":"affected"},{"version":"<= 23.1.20260131","status":"affected"}]}],"references":[{"url":"https://github.com/EGroupware/egroupware/security/advisories/GHSA-h9qx-v5xp-ph8p","name":"https://github.com/EGroupware/egroupware/security/advisories/GHSA-h9qx-v5xp-ph8p","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-285","lang":"en","description":"CWE-285: Improper Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-20T15:24:51.684Z"},"source":{"advisory":"GHSA-h9qx-v5xp-ph8p","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-21T15:46:30.403114Z","id":"CVE-2026-27823","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-21T15:47:35.591Z"}}]}}}