VulnerabilityModified
CVE-2022-40956
When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead.
MEDIUM 6.1EPSS 0.88%
Does this matter?
Lower severity and a low EPSS score (0.88%). Track it; it rarely justifies an emergency change on its own.
Description
When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.88% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1770094Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-40/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-41/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-42/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1770094Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-40/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-41/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-42/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.