CVE-2023-37455

MEDIUMNVD 5.45.4—

5.4

The permission request prompt from the site in the background tab was overlaid on top of the site in the foreground tab. This vulnerability affects Firefox for iOS < 115.

CVSS v3: 5.4
EG Score: 5.4(medium)
EPSS: 48.9%
KEV: Not listed

Published

July 12, 2023

Last Modified

November 21, 2024

References (4)

security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=1786934
security@mozillahttps://www.mozilla.org/security/advisories/mfsa2023-25/
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1786934
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2023-25/

Weakness Classification(1)

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

CWE-1021Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

Data Freshness Timeline

(refreshed 14× 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
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2026-06-01 13:51 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch

Frequently asked(5)

What is CVE-2023-37455?

CVE-2023-37455 is a medium vulnerability published on July 12, 2023. The permission request prompt from the site in the background tab was overlaid on top of the site in the foreground tab. This vulnerability affects Firefox for iOS < 115.

When was CVE-2023-37455 disclosed?

CVE-2023-37455 was first published in the National Vulnerability Database on July 12, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-37455 actively exploited?

CVE-2023-37455 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-37455?

CVE-2023-37455 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2023-37455?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-37455, 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-2023-37455

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-37455?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)