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CVE-2023-37206

19
FAUCET Score

CVE-2023-37206 is a medium-severity vulnerability affecting Mozilla Firefox versions prior to 115, where uploading files containing symlinks could trick a user into submitting sensitive data to a malicious website. The attack requires user interaction (UI:R) and has a high confidentiality impact (C:H) with a CVSS score of 6.5. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion, though it has received some media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 115.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 115CPE match
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
50.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 56th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2023-Jul/CVE-2023-37206Moderate

Uploading files which contain symlinks may have allowed an attacker to trick a user into submitting sensitive data to a malicious website. This vulnerability affects Firefox < 115.

Jul 11, 2023

References

bugzilla.mozilla.org / show_bug.cgi
ExploitIssue Tracking
security.gentoo.org / glsa/202401-10
mozilla.org / security/advisories/mfsa2023-22
Vendor Advisory