What is CVE-2021-28373?

CVE-2021-28373 is a high-severity vulnerability in Tt-Rss Tiny Rss, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2021-03-13.

How severe is CVE-2021-28373?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Tt-Rss Tiny Rss

CVE-2021-28373

The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE: this issue only affected the git master branch for a short time. However, all end users are explicitly directed to use the git master branch in production. Semantic version numbers such as 21.03 appear to exist, but are automatically generated from the year and month. They are not releases.

Vulnerability class: Broken Access Control

EPSS: 0.009 (57.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Tt-rss Tiny_tiny_rss
N/a — versions n/a

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve@mitre.org (Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-28373?: CVE-2021-28373 is a high-severity vulnerability in Tt-Rss Tiny Rss, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2021-03-13.
How severe is CVE-2021-28373?: High severity. CVSS v3 base score is 7.5 out of 10.