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TI-2023-05272 Aliases CVE-2023-5729GHSA-52cj-9wxr-xfhp

A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn…

Priority LOW 21Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been leveraged in a spoofing attack. This vulnerability affects Firefox < 119.

Why it matters now

EPSS 0.00698 53rd percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 119

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 119119Patch availableCNA
  • Firefox VendorMozilla Affected before 119 Fixed in 119 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 119.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 119.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 119

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 119

    11 records Highest priority Priority MEDIUM 4 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2023-05273 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 52
    • TI-2023-05274 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 44
    • TI-2023-05271 Use after free in Mozilla FirefoxPriority MEDIUM 42
    Show all 11 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-5729
  2. 2026-10-03 Alias added: GHSA-52cj-9wxr-xfhp
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 2

Other 1

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences