CLEANSTART-2024-ZR42121

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Import Source
https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZR42121.json
JSON Data
https://api.osv.dev/v1/vulns/CLEANSTART-2024-ZR42121
Upstream
Published
2026-10-31T14:32:21Z
Modified
2026-10-31T16:03:11Z
Severity
  • 10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame
Details

CVE-2021-38503 affects multiple packages. The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. 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
91.3.2-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZR42121.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
94.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZR42121.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
94.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZR42121.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
94.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZR42121.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
94.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZR42121.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
94.0-r0

Database specific

source 
"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ZR42121.json"