What is CVE-2015-1401?

CVE-2015-1401 is a critical-severity vulnerability in Ldap \/ Sso Authentication Project, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-08-28.

How severe is CVE-2015-1401?

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

Auth bypass in Ldap \/ Sso Authentication Project

CVE-2015-1401

Improper Authentication vulnerability in the "LDAP / SSO Authentication" (ig_ldap_sso_auth) extension 2.0.0 for TYPO3.

Vulnerability class: Broken Authentication

Published 2017-08-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.029 (86.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000

Affected products

Ldap \/ Sso Authentication Project — versions 2.0.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.securityfocus.com/bid/71981 (VDB Entry, Third Party Advisory, vdb-entry)
www.openwall.com/lists/oss-security/2015/01/27/31 (mailing-list, Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2015/01/11/7 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2015-1401?: CVE-2015-1401 is a critical-severity vulnerability in Ldap \/ Sso Authentication Project, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-08-28.
How severe is CVE-2015-1401?: Critical severity. CVSS v3 base score is 9.8 out of 10.