CVE-2025-52557 PUBLISHED

Mail-0 Zero Session Hijacking Via Email

Assigner: GitHub_M
Reserved: 18.06.2025 Published: 21.06.2025 Updated: 21.06.2025

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	Mail-0
Product	Zero
Versions	Version = 0.8 is affected

References

https://github.com/Mail-0/Zero/security/advisories/GHSA-34gh-g567-hq85
https://github.com/Mail-0/Zero/pull/1386
https://github.com/Mail-0/Zero/commit/48d1df65b62c9c57897b72b241081f447140342f

Problem Types

CWE-1384: Improper Handling of Physical or Environmental Conditions CWE