CVE-2026-8960
Spoofing issue in WebExtensions.
Published May 19, 2026 · updated Oct 14, 2026 · mozilla firefox
Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Timeline
Detection, updates, and resolution for this record.
May 19, 2026 · NIST NVD
Detected
Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Oct 14, 2026 · NIST NVD
Updated
Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Affected
- cpe mozilla/firefoxversion unspecified
- cpe mozilla/thunderbirdversion unspecified
Sources
- CVE.orgCVE-2026-8960
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-8960
30-day exploitation probability 0.4%
first.org - NIST NVDCVE-2026-8960
Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
nvd.nist.gov