{"schemaVersion":3,"id":"CVE-2025-27791","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Collabora Online is a collaborative online office suite based on LibreOffice technology. In versions prior to 24.04.12.4, 23.05.19, and 22.05.25, there is a path traversal flaw in handling the CheckFileInfo BaseFileName field returned from WOPI servers. This allows for a file to be written anywhere the uid running Collabora Online can write, if such a response was supplied by a malicious WOPI server. By combining this flaw with a Time of Check, Time of Use DNS lookup issue with a WOPI server address under attacker control, it is possible to present such a response to be processed by a Collabora Online instance. This issue has been patched in versions 24.04.13.1, 23.05.19, and 22.05.25.","dates":{"published":"2025-04-15T19:09:18.774Z","modified":"2025-04-15T20:27:04.827Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.3,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.3,"severity":"high","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.3,"severity":"high","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/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","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00478,"percentile":0.39956,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.008000000000000021,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.0047},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00478,"percentile":0.39956}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0047,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00478,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00478,"percentile":0.39956}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-23","name":"Relative Path Traversal","description":"The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as \"..\" that can resolve to a location that is outside of that directory.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/23.html"}],"affected":[{"vendor":"collaboraonline","product":"online","name":"online","label":"online","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 24.04.1.1, < 24.04.13.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 23.05.0, < 23.05.19","noFixRecorded":false,"fixedIn":null},{"text":"< 22.05.25","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 24.04.1.1, < 24.04.13.1 | ≥ 23.05.0, < 23.05.19 | < 22.05.25","eol":null,"hubHref":"/vendor/collaboraonline/online"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/CollaboraOnline/online/security/advisories/GHSA-9j32-gg3j-8w25","label":"github.com/CollaboraOnline/online/security/advisories/GHSA-9j32-gg3j-8w25","hostname":"github.com","tags":["X Refsource CONFIRM"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2025-04-15T19:09:18.774Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-04-15T20:27:04.827Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":33,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T08:09:00.591Z","stale":false,"partial":false}}