CVEvulnerability

CVE-2020-6802

6.1 MEDIUM Published 2020-03-24 Modified 2026-06-17 Official page ↗

Status: Modified
Published: 2020-03-24
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0 ([email protected]): 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
Weaknesses: CWE-79

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.

Affected configurations

• mozilla bleach (< 3.1.1) • fedoraproject fedora 30 • fedoraproject fedora 31 • fedoraproject fedora 32

Related

Weakness · CWE (1)

CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References

https://advisory.checkmarx.net/advisory/CX-2020-4276 Exploit, Third Party Advisory
https://github.com/mozilla/bleach/security/advisories/GHSA-q65m-pv3f-wr5r Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/72R4VFFHDRSQMNT7IZU3X2755ZP4HGNI/ lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCNLM2MGQTOLCIVVYS2Z5S7KOQJR5JC4/ lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTULPQB7HVPPYWEYVNHJGDTSPVIDHIZX/ lists.fedoraproject.org
https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach Exploit, Third Party Advisory
https://advisory.checkmarx.net/advisory/CX-2020-4276 Exploit, Third Party Advisory
https://github.com/mozilla/bleach/security/advisories/GHSA-q65m-pv3f-wr5r Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/72R4VFFHDRSQMNT7IZU3X2755ZP4HGNI/ lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCNLM2MGQTOLCIVVYS2Z5S7KOQJR5JC4/ lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTULPQB7HVPPYWEYVNHJGDTSPVIDHIZX/ lists.fedoraproject.org
https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach Exploit, Third Party Advisory