CVE-2025-52557

Mail-0 Zero Session Hijacking Via Email

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.

Category

8.6
CVSS
Severity: High
CVSS 4.0 •
EPSS 0.04%
Affected: Mail-0 Zero
Published at:
Updated at:

References

Link Tags
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

Frequently Asked Questions

What is the severity of CVE-2025-52557?
CVE-2025-52557 has been scored as a high severity vulnerability.
How to fix CVE-2025-52557?
To fix CVE-2025-52557, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-52557 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-52557 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-52557?
CVE-2025-52557 affects Mail-0 Zero.
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