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Vulnerability record · CVE-2023-36816 · published 3 July 2023

CVE-2023-36816: 2fauth cross-site scripting vulnerability

22fauth · 2fauth

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.

6.1 CVSS 3.1 Medium EPSS 0.50% · top 60.0% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.50%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-36816), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.