How severe is CVE-2023-36816?

CVE-2023-36816 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability high.

Is CVE-2023-36816 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36816?

CVE-2023-36816 affects 2fauth. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-36816?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-36816 published?

CVE-2023-36816 was published on 2023-07-03 and last updated on 2026-06-17.

CVE-2023-36816

CVE-2023-36816 is a medium-severity vulnerability in 2fauth with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: 2fauth
Published: 2023-07-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-36816?: 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.
How severe is CVE-2023-36816?: CVE-2023-36816 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability high.
Is CVE-2023-36816 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36816?: CVE-2023-36816 affects 2fauth. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-36816?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-36816 published?: CVE-2023-36816 was published on 2023-07-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:2fauth:2fauth:*:*:*:*:*:*:*:*

More vulnerabilities in 2fauth

CVE-2026-32133 — Critical (CVSS 9.1): 2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Prior to…
CVE-2024-52598 — High (CVSS 7.5): 2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Two…
CVE-2025-45731 — Medium (CVSS 6.5): A group deletion race condition in 2FAuth v5.5.0 causes data inconsistencies and orphaned accounts when a group is…
CVE-2024-52597 — Medium (CVSS 6.1): 2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Versions…

All CVEs affecting 2fauth →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →