CVE-2025-5267: Clickjacking vulnerability could have led to leaking saved payment card details

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-27 · updated 2026-10-05
Weakness: CWE-1021

Description

A clickjacking vulnerability could have been used to trick a user into leaking saved payment card details to a malicious page. This vulnerability was fixed in Firefox 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

Affected products

Mozilla Firefox: before 128.11.0; before 139.0 — fixed in 128.11.0, 139.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 128.11.0, 139.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1954137
https://www.mozilla.org/security/advisories/mfsa2025-42/
https://www.mozilla.org/security/advisories/mfsa2025-44/
https://www.mozilla.org/security/advisories/mfsa2025-45/
https://www.mozilla.org/security/advisories/mfsa2025-46/
https://lists.debian.org/debian-lts-announce/2025/05/msg00043.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html

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