{"id":"CVE-2025-52557","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-52557","generatedAt":"2026-10-28T00:20:12.827Z","title":"In version 0.8 it's possible for an attacker to craft an email that executes javascript leading to session hijacking due to improper sanitization.","description":"Mail-0's Zero is an open-source email solution. In version 0.8 it's possible for an attacker to craft an email that executes javascript leading to session hijacking due to improper sanitization. This issue has been patched in version 0.81.","published":"2025-06-21T02:15:20.000Z","lastModified":"2026-06-17T09:36:40.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"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/M"},"cwe":["CWE-1384"],"affected":[],"epss":{"score":0.00418,"percentile":0.35893,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/Mail-0/Zero/commit/48d1df65b62c9c57897b72b241081f447140342f","source":"security-advisories@github.com"},{"url":"https://github.com/Mail-0/Zero/pull/1386","source":"security-advisories@github.com"},{"url":"https://github.com/Mail-0/Zero/security/advisories/GHSA-34gh-g567-hq85","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-52557","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}