CVE-2025-8039 – Firefox/Thunderbird URL Bar Search Term Persistence Vulnerability

The following table lists the changes that have been made to the
CVE-2025-8039 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jul. 22, 2025

    Action Type Old Value New Value
    Added Description In some cases search terms persisted in the URL bar even after navigating away from the search page. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1.
    Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1970997
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-56/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-59/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-61/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-63/
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