Cross-Site Scripting Flaw in Mozilla Bleach by Mozilla
CVE-2020-6802

6.1MEDIUM

Key Information:

Vendor
Mozilla
Status
Mozilla Bleach
Vendor
CVE Published:
24 March 2020

Summary

A vulnerability in Mozilla Bleach prior to version 3.11 allows for mutation-based Cross-Site Scripting (XSS) attacks. This flaw occurs when users invoke the bleach.clean function with the 'noscript' tag and include a raw tag in their list of allowed tags. Such an improper sanitization can lead to the execution of malicious scripts when rendered in a web application, potentially compromising user security and data integrity. Developers are advised to update to the latest version to mitigate this risk.

Affected Version(s)

Mozilla Bleach <=3.10

References

https://github.com/mozilla/bleach/security/advisories/GHS...
x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.