CVE-2025-1935

medium

Description

A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

References

https://www.mozilla.org/security/advisories/mfsa2025-18/

https://www.mozilla.org/security/advisories/mfsa2025-17/

https://www.mozilla.org/security/advisories/mfsa2025-16/

https://www.mozilla.org/security/advisories/mfsa2025-14/

https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1866661

Details

Source: Mitre, NVD

Published: 2025-03-04

Updated: 2026-04-13

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N