What is CVE-2026-16261?

CVE-2026-16261 is a high-severity vulnerability in Login-Social, classified under Improper Authentication. CVSS score: 7.5/10. Published 2026-08-02.

How severe is CVE-2026-16261?

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

Auth bypass in Login-Social

CVE-2026-16261

The login-social WordPress plugin through 1.0.4 does not validate password-reset requests against a reset key or the requester's identity, and it issues authentication sessions from unverified third-party sign-in data, allowing unauthenticated attackers to reset any user's password or log in as any existing account, including administrators, and take over the site.

Vulnerability class: Broken Authentication

EPSS: 0.003 (26.5th 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:N/A:H.

Affected products

Unknown Login-social — versions 0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16261?: CVE-2026-16261 is a high-severity vulnerability in Login-Social, classified under Improper Authentication. CVSS score: 7.5/10. Published 2026-08-02.
How severe is CVE-2026-16261?: High severity. CVSS v3 base score is 7.5 out of 10.