// For flags

CVE-2024-11694

firefox: thunderbird: CSP Bypass and XSS Exposure via Web Compatibility Shims

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Enhanced Tracking Protection's Strict mode may have inadvertently allowed a CSP `frame-src` bypass and DOM-based XSS through the Google SafeFrame shim in the Web Compatibility extension. This issue could have exposed users to malicious frames masquerading as legitimate content. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Firefox ESR < 115.18, Thunderbird < 133, and Thunderbird < 128.5.

Enhanced Tracking Protection's Strict mode may have inadvertently allowed a CSP `frame-src` bypass and DOM-based XSS through the Google SafeFrame shim in the Web Compatibility extension. This issue could have exposed users to malicious frames masquerading as legitimate content. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Firefox ESR < 115.18, Thunderbird < 133, Thunderbird < 128.5, and Thunderbird < 115.18.

The Mozilla Foundation's Security Advisory: Enhanced Tracking Protection's Strict mode may inadvertently allow a CSP `frame-src` bypass and DOM-based cross-site scripting (XSS) through the Google SafeFrame shim in the Web Compatibility extension. This issue could expose users to malicious frames masquerading as legitimate content.

Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code.

*Credits: Masato Kinugawa
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-11-25 CVE Reserved
  • 2024-11-26 CVE Published
  • 2024-12-13 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
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Firefox
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*-
Affected
Mozilla
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Firefox Esr
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*-
Affected
Mozilla
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Thunderbird
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*-
Affected
Oracle
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Linux
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*-
Affected
Redhat
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Enterprise Linux
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Affected
Redhat
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Rhel Aus
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Affected
Redhat
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Rhel E4s
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Affected
Redhat
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Rhel Eus
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Affected
Redhat
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Rhel Tus
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Affected
Alma
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Linux
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Affected
Canonical
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Ubuntu Linux
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Affected
Debian
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Debian Linux
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Affected
Fedoraproject
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Fedora
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Affected
Opensuse
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Leap
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Oracle
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Linux
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Affected
Redhat
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Enterprise Linux
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Redhat
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Rhel Aus
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Affected
Redhat
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Rhel E4s
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Affected
Redhat
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Rhel Els
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Redhat
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Rhel Eus
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Redhat
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Rhel Tus
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Affected
Slackware
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Slackware Linux
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Affected
Suse
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Packagehub
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Affected
Suse
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Sle-module-desktop-applications
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Affected
Suse
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Sle-we
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Suse
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Sle Hpc-espos
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Suse
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Sle Hpc-ltss
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Suse
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Sle Hpc
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Suse
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Sled
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Suse
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Sles-ltss-extended-security
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Suse
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Sles-ltss
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Suse
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Sles
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Suse
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Sles Sap
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Affected