CVE-2020-6816
MEDIUM
6.1
CVSS Score
Published: March 24, 2020 at 09:15 PM UTC
Updated: June 17, 2026 at 03:23 AM UTC
2 products affected across 2 vendorsFedoraBleach
Using Mozilla Bleach by N/A?
Get instant alerts when new vulnerabilities affect Mozilla Bleach - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.1
Exploit prediction
EPSS 1%
Description
In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argument strip=False.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://advisory.checkmarx.net/advisory/CX-2020-4277x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleachCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-79
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card