What is CVE-2013-2198?

CVE-2013-2198 is a critical-severity vulnerability in Login Security, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2020-01-30.

How severe is CVE-2013-2198?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Login Security

CVE-2013-2198

The Login Security module 6.x-1.x before 6.x-1.3 and 7.x-1.x before 7.x-1.3 for Drupal allows attackers to bypass intended restrictions via a crafted username.

Vulnerability class: Broken Access Control

Published 2020-01-30 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

drupal.org/node/2023507 (Third Party Advisory)
drupal.org/node/2023503 (Third Party Advisory)
www.openwall.com/lists/oss-security/2013/06/20/3 (Mailing List, Third Party Advisory)
drupal.org/node/2023585 (Third Party Advisory)

Frequently asked questions

What is CVE-2013-2198?: CVE-2013-2198 is a critical-severity vulnerability in Login Security, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2020-01-30.
How severe is CVE-2013-2198?: Critical severity. CVSS v3 base score is 9.8 out of 10.