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CVE-2025-52557

Date: June 20, 2025

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.

Severity Score

Related Resources (5)

https://github.com/Mail-0/Zero/security/advisories/GHSA-34gh-g567-hq85
https://nvd.nist.gov/vuln/detail/CVE-2025-52557
https://github.com/Mail-0/Zero/commit/48d1df65b62c9c57897b72b241081f447140342f
https://github.com/Mail-0/Zero/pull/1386
https://www.mend.io/vulnerability-database/CVE-2025-52557

Severity Score

Weakness Type (CWE)

Improper Handling of Physical or Environmental Conditions

CWE-1384

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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