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CVE-2023-36816

20
FAUCET Score

CVE-2023-36816 is a Cross-Site Scripting (XSS) vulnerability affecting 2FAuth, a web application for managing two-factor authentication accounts. This medium-severity flaw (CVSS 6.1) allows attackers to inject malicious scripts via the account/service field, requiring user interaction but potentially leading to limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage. The vulnerability has been patched in version 4.0.3.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.3CPE matchmatch criteria
cpe:2.3:a:2fauth:2fauth:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
39.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 42nd percentile among its peer group of 26,221 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

No media coverage found for this CVE.

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)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

github.com / Bubka/2FAuth/releases/tag/v4.0.3
Release Notes
github.com / Bubka/2FAuth/security/advisories/GHSA-cwhq-2mcq-pp9q
ExploitVendor Advisory