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

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4191-1 firefox-esr security update
Debian DLA Debian DLA DLA-4194-1 thunderbird security update
Debian DSA Debian DSA DSA-5926-1 firefox-esr security update
Debian DSA Debian DSA DSA-5932-1 thunderbird security update
EUVD EUVD EUVD-2025-18108 Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability affects Firefox < 139, Firefox ESR < 115.24, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
Ubuntu USN Ubuntu USN USN-7663-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 03 Nov 2025 20:30:00 +0000


Thu, 30 Oct 2025 16:15:00 +0000

Type Values Removed Values Added
Title firefox: thunderbird: Error handling for script execution was incorrectly isolated from web content Error handling for script execution was incorrectly isolated from web content

Mon, 16 Jun 2025 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els

Wed, 11 Jun 2025 12:15:00 +0000

Type Values Removed Values Added
Description Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability affects Firefox < 139, Firefox ESR < 115.24, and Firefox ESR < 128.11. Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability affects Firefox < 139, Firefox ESR < 115.24, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
References

Tue, 10 Jun 2025 06:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Aus
Redhat rhel Tus
CPEs cpe:/a:redhat:rhel_aus:8.2
cpe:/a:redhat:rhel_aus:8.4
cpe:/a:redhat:rhel_aus:8.6
cpe:/a:redhat:rhel_e4s:8.6
cpe:/a:redhat:rhel_e4s:8.8
cpe:/a:redhat:rhel_e4s:9.2
cpe:/a:redhat:rhel_tus:8.6
cpe:/a:redhat:rhel_tus:8.8
Vendors & Products Redhat rhel Aus
Redhat rhel Tus

Fri, 06 Jun 2025 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel E4s
Redhat rhel Eus
CPEs cpe:/a:redhat:rhel_e4s:9.0
cpe:/a:redhat:rhel_eus:9.4
Vendors & Products Redhat rhel E4s
Redhat rhel Eus

Thu, 05 Jun 2025 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:-:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
Vendors & Products Mozilla
Mozilla firefox

Tue, 03 Jun 2025 06:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10.0

Thu, 29 May 2025 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux

Thu, 29 May 2025 02:45:00 +0000

Type Values Removed Values Added
Title firefox: thunderbird: Error handling for script execution was incorrectly isolated from web content
Weaknesses CWE-829
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 27 May 2025 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 27 May 2025 12:45:00 +0000

Type Values Removed Values Added
Description Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability affects Firefox < 139, Firefox ESR < 115.24, and Firefox ESR < 128.11.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-11-03T20:05:56.273Z

Reserved: 2025-05-27T12:29:22.271Z

Link: CVE-2025-5263

cve-icon Vulnrichment

Updated: 2025-11-03T20:05:56.273Z

cve-icon NVD

Status : Modified

Published: 2025-05-27T13:15:22.100

Modified: 2025-11-03T20:19:15.950

Link: CVE-2025-5263

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-05-27T12:29:22Z

Links: CVE-2025-5263 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses