CVE-2025-3035

MEDIUM 5.3

Tab title disclosure across pages when using AI chatbot

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

By first using the AI chatbot in one tab and later activating it in another tab, the document title of the previous tab would leak into the chat prompt. This vulnerability was fixed in Firefox 137.

Vendor	mozilla
Product	firefox
Ecosystems	Browser JavaScript
Industries	Technology
Published	Apr 1, 2025
Last Updated	Apr 13, 2026

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Affected Versions

Mozilla / Firefox

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=1952268 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-20/

Credits

Matthew Noorenberghe