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CVE

CVE-2023-37207

A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, s

A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

MEDIUM · CVSS 6.5 EPSS 0.00417
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-470Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
▤

Affected Products & Versions

4
mozilla firefox< 115.0
mozilla firefox esr< 102.13
mozilla thunderbird< 102.13
debian linuxall versions
◈

Sigma Hunt Rules

1
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.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

6.5
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 NVD05 Jul 2023 · 09:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
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

26
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:13037-1
suse-csafopenSUSE-SU-2024:13040-1
suse-csafopenSUSE-SU-2024:13133-1
suse-csafSUSE-SU-2023:2886-1
🔗

References & Sources

8
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=1816287Issue TrackingPermissions Required
https://lists.debian.org/debian-lts-announce/2023/07/msg00006.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/07/msg00015.html
https://www.debian.org/security/2023/dsa-5450Third Party Advisory
https://www.debian.org/security/2023/dsa-5451Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-22/Vendor Advisory
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