Home/CVE/A website could have obscured the full screen notification by using the file open dialog. This could have led to user co
CVE

CVE-2023-5726

A website could have obscured the full screen notification by using the file open dialog. This could have led to user co

A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. Note: This issue only affected macOS operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

MEDIUM · CVSS 4.3 EPSS 0.00173
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules9 YARA rules0
▤

Affected Products & Versions

3
mozilla firefox< 119.0
mozilla firefox esr< 115.4
mozilla thunderbird< 115.4.1
◈

Sigma Hunt Rules

9
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Oct 2023 · 06:17 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

12
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:13356-1
suse-csafopenSUSE-SU-2024:13385-1
suse-csafopenSUSE-SU-2024:13412-1
suse-csafSUSE-SU-2023:4551-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1846205Issue TrackingVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-45/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-46/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-47/Vendor Advisory
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