CVE-2025-8039: Search terms persisted in URL bar
In some cases search terms persisted in the URL bar even after navigating away from the search page.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 140.1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 141 - Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 141 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 140.1 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 141 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 140.1
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2025-8039?
The severity of CVE-2025-8039 is considered moderate as it involves search terms persisting in the URL bar.
How do I fix CVE-2025-8039?
To fix CVE-2025-8039, update your Mozilla Firefox to version 141 or later, or Firefox ESR to version 140.2 or later.
What versions of Firefox are affected by CVE-2025-8039?
CVE-2025-8039 affects Mozilla Firefox versions prior to 141 and Firefox ESR versions prior to 140.1.
Does CVE-2025-8039 affect other browsers?
CVE-2025-8039 is specific to Mozilla Firefox and Firefox ESR and does not affect other web browsers.
What type of issue does CVE-2025-8039 represent?
CVE-2025-8039 represents a data leakage issue where search terms remain visible in the URL bar after page navigation.