CLEANSTART-2024-QT54889

See a problem?
Import Source
https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-QT54889.json
JSON Data
https://api.osv.dev/v1/vulns/CLEANSTART-2024-QT54889
Upstream
Published
2026-10-31T14:36:08Z
Modified
2026-10-31T16:02:21Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS
Details

CVE-2020-26956 affects multiple packages. In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS. See references for individual vulnerability details.

References

Affected packages

CleanStart
thunderbird

Package

Name
thunderbird
Purl
pkg:apk/cleanstart/thunderbird

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
78.5.1-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-QT54889.json"
librewolf

Package

Name
librewolf
Purl
pkg:apk/cleanstart/librewolf?arch=x86_64

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
83.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-QT54889.json"
librewolf

Package

Name
librewolf
Purl
pkg:apk/cleanstart/librewolf?arch=armv7

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
83.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-QT54889.json"
librewolf

Package

Name
librewolf
Purl
pkg:apk/cleanstart/librewolf?arch=aarch64

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
83.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-QT54889.json"
librewolf

Package

Name
librewolf
Purl
pkg:apk/cleanstart/librewolf?arch=x86

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
83.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-QT54889.json"
librewolf

Package

Name
librewolf
Purl
pkg:apk/cleanstart/librewolf?arch=ppc64le

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
83.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-QT54889.json"