Vulnerability Description
In Mozilla Bleach before 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags option.
CVSS Score
6.1
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Bleach | < 3.1.1 |
| Fedoraproject | Fedora | 30 |
Related Weaknesses (CWE)
References
- https://advisory.checkmarx.net/advisory/CX-2020-4276ExploitThird Party Advisory
- https://github.com/mozilla/bleach/security/advisories/GHSA-q65m-pv3f-wr5rThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleachExploitThird Party Advisory
- https://advisory.checkmarx.net/advisory/CX-2020-4276ExploitThird Party Advisory
- https://github.com/mozilla/bleach/security/advisories/GHSA-q65m-pv3f-wr5rThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleachExploitThird Party Advisory
FAQ
What is CVE-2020-6802?
CVE-2020-6802 is a vulnerability with a CVSS score of 6.1 (MEDIUM). In Mozilla Bleach before 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags option.
How severe is CVE-2020-6802?
CVE-2020-6802 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-6802?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Bleach, Fedoraproject Fedora.