{"id":"CVE-2018-25438","title":"Intermesh Group-Office < 3.5.5 Path Traversal via compress.php","summary":"Intermesh Group-Office 3.3.0 before 3.5.5 contains an unauthenticated path traversal vulnerability in compress.php that allows remote attackers to read arbitrary files by manipulating the 'file' parameter. Attackers can send GET requests…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"Intermesh","product":"Group-Office","affected":["Group-Office >= 3.3.0 < 3.5.5"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T10:57:25.404Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2018-25438","references":[{"url":"https://cxsecurity.com/issue/WLB-2018020249","label":"CXSecurity WLB-2018020249"},{"url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/groupoffice-lfi.yaml","label":"Nuclei Template"},{"url":"https://www.group-office.com/","label":"Product Homepage"},{"url":"https://www.vulncheck.com/advisories/intermesh-group-office-3.5.5-path-traversal-via-compress-php","label":"VulnCheck Advisory: Intermesh Group-Office < 3.5.5 Path Traversal via compress.php"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T11:37:02.345Z","slug":"CVE-2018-25438","body":"## Overview\n\nIntermesh Group-Office 3.3.0 before 3.5.5 contains an unauthenticated path traversal vulnerability in compress.php that allows remote attackers to read arbitrary files by manipulating the 'file' parameter. Attackers can send GET requests to /compress.php with '../' sequences in the 'file' parameter, which is appended to the cache path and passed to readfile(), to read files such as /etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-21.\n\n## Affected\n\n- `Group-Office >= 3.3.0 < 3.5.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}