CVE-2025-1935

MEDIUM EPSS 23.4%
Published Mar 4, 20251y ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Mar 4, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
23.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 4

VendorProductVersionRange
mozillafirefox* <128.8.0
mozillafirefox* <136.0
mozillathunderbird* <128.8.0
mozillathunderbird*≥129.0  –  <136.0

References 6

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1866661
    Issue Tracking
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-14/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-16/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-17/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-18/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.