CyberAlerts is shutting down on June 30th, 2025. Thank you for your support!

CVE-2025-1935: A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability affects Firefox < 136 and...

Description

A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability affects Firefox < 136 and Firefox ESR < 128.8.

Classification

CVE ID: CVE-2025-1935

Problem Types

Clickjacking the registerProtocolHandler info-bar

Affected Products

Vendor: Mozilla, Mozilla

Product: Firefox, Firefox ESR

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.08% (probability of being exploited)

EPSS Percentile: 21.06% (scored less or equal to compared to others)

EPSS Date: 2025-04-02 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-1935
https://bugzilla.mozilla.org/show_bug.cgi?id=1866661
https://www.mozilla.org/security/advisories/mfsa2025-14/
https://www.mozilla.org/security/advisories/mfsa2025-16/

Timeline

2025-03-04 14:40:13 UTC
CVE

A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability affects Firefox < 136 and...