CVE-2025-3035

MEDIUMNVD 5.35.3—

5.3

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.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 34.5%
KEV: Not listed

Published

April 1, 2025

Last Modified

April 13, 2026

References (2)

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-359

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
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2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
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2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch

Frequently asked(5)

What is CVE-2025-3035?

CVE-2025-3035 is a medium vulnerability published on April 1, 2025. 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.

When was CVE-2025-3035 disclosed?

CVE-2025-3035 was first published in the National Vulnerability Database on April 1, 2025, with the most recent update on April 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-3035 actively exploited?

CVE-2025-3035 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 34.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-3035?

CVE-2025-3035 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2025-3035?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-3035, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-3035

📅 Published

🔄 Last Modified

🔗 References (2)