CVE-2023-23604
MEDIUMCVSS 6.5/10EPSS 0.46%
Last modified
CVE-2023-23604 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A duplicate `SystemPrincipal` object could be created when parsing a non-system html document via `DOMParser::ParseFromSafeString`. This could have lead to bypassing web security checks. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
Description
A duplicate `SystemPrincipal` object could be created when parsing a non-system html document via `DOMParser::ParseFromSafeString`. This could have lead to bypassing web security checks. This vulnerability affects Firefox < 109.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 109.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1802346Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-01/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1802346Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-01/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-23604?
A duplicate `SystemPrincipal` object could be created when parsing a non-system html document via `DOMParser::ParseFromSafeString`. This could have lead to bypassing web security checks. This vulnerability affects Firefox < 109.
How severe is CVE-2023-23604?
CVE-2023-23604 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.
How do I fix CVE-2023-23604?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-23604?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST