CVE-2025-10529
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-16

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
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Meta Information
Published
2025-09-16
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2025-09-16
EPSS Evaluated
2026-06-15
NVD
CVE-2025-10529
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
mozilla thunderbird to 140.0 (inc)
mozilla firefox From 60.9.0 (exc)
mozilla firefox From 60.9.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-942 The product uses a web-client protection mechanism such as a Content Security Policy (CSP) or cross-domain policy file, but the policy includes untrusted domains with which the web client is allowed to communicate.
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Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 143 or later, and Thunderbird to version 140.3 or later.

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