CVE-2025-5263 Error handling for script execution was incorrectly isolated from web content

Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11...

Important: Red Hat Security Advisory: webkit2gtk3 security update

An update for webkit2gtk3 is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

webkitgtk: A malicious website may exfiltrate data cross-origin

A flaw was found in WebKitGTK. A malicious website may exfiltrate data cross-origin due to a cookie management issue related to improper state management...

Mozilla Firefox ESR < 115.24

The version of Firefox ESR installed on the remote Windows host is prior to 115.24. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-43 advisory. - A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder...

Mozilla Thunderbird < 128.11

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 128.11. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-46 advisory. - Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of...

Mozilla Thunderbird < 128.11

The version of Thunderbird installed on the remote Windows host is prior to 128.11. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-46 advisory. - Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory...

Mozilla Firefox < 139.0

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 139.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-42 advisory. - Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. Some...

Mozilla Firefox ESR < 128.11

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 128.11. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-44 advisory. - Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of...

PT-2025-22988

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 139 Firefox ESR versions prior to 115.24 Firefox ESR versions prior to 128.11 Description The issue arises from incorrect isolation of error handling for script execution from web content, potentially allowing...

PT-2025-22991

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 139 Firefox ESR versions prior to 128.11 Description The issue arises from script elements loading cross-origin resources, which generate load and error events. These events leak information, enabling XS-Leaks attacks...

Mozilla Firefox 安全漏洞

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the United States. A security vulnerability exists in Mozilla Firefox versions prior to 139, Firefox ESR versions prior to 115.24, and Firefox ESR versions prior to 128.11, which stems from a mishandling of script...

Mozilla Firefox ESR < 115.24

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 115.24. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-43 advisory. - A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing t...

Security Vulnerabilities fixed in Thunderbird 139 — Mozilla

A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...

Security Vulnerabilities fixed in Firefox 139 — Mozilla

A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...

Security Vulnerabilities fixed in Thunderbird 128.11 — Mozilla

A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...

Security Vulnerabilities fixed in Firefox ESR 128.11 — Mozilla

A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...

Mozilla Thunderbird < 139.0

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 139.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-45 advisory. - Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10...

Mozilla Firefox ESR < 128.11

The version of Firefox ESR installed on the remote Windows host is prior to 128.11. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-44 advisory. - Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory...

RHEL 8 : webkit2gtk3 (RHSA-2025:8194)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:8194 advisory. WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform. Security Fixes: webkitgtk: Processing maliciously...

Mozilla Firefox 安全漏洞

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the United States. A security vulnerability exists in Mozilla Firefox versions prior to 139 and Firefox ESR versions prior to 128.11, which originates from a script element loading cross-origin resources resulting in an...