XSS in Mozilla Firefox

CVE-2024-26281

Upon scanning a JavaScript URI with the QR code scanner, an attacker could have executed unauthorized scripts on the current top origin sites in the URL bar. This vulnerability affects Firefox for iOS < 123.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (23.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-26281?
CVE-2024-26281 is a medium-severity vulnerability in Mozilla Firefox, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2024-02-22.
How severe is CVE-2024-26281?
Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2024-26281 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.