CVE-2023-36816

Name: CVE-2023-36816
Creator: NVD / NIST
Published: 2023-07-03T17:15:09.463+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2023-36816 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 2FA is a Web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Cross site scripting (XSS) injection can be done via the account/service field. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

2FA is a Web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Cross site scripting (XSS) injection can be done via the account/service field. This was tested in docker-compose environment. This vulnerability has been patched in version 4.0.3.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.45%

36.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
2fauth	2fauth	< 4.0.3

References

https://github.com/Bubka/2FAuth/releases/tag/v4.0.3Release Notes
https://github.com/Bubka/2FAuth/security/advisories/GHSA-cwhq-2mcq-pp9qExploit, Vendor Advisory
https://github.com/Bubka/2FAuth/releases/tag/v4.0.3Release Notes
https://github.com/Bubka/2FAuth/security/advisories/GHSA-cwhq-2mcq-pp9qExploit, Vendor Advisory

Timeline

Published: Jul 3, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-36816?

How severe is CVE-2023-36816?

CVE-2023-36816 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2023-36816?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-36816?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST