What is CVE-2026-15964?

CVE-2026-15964 is a critical-severity vulnerability in Britcoder Single Sign On For Tng, classified under CWE-620. CVSS score: 9.8/10. Published 2026-08-01.

How severe is CVE-2026-15964?

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

Is CVE-2026-15964 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Britcoder Single Sign On For Tng

CVE-2026-15964

The Single Sign On For TNG plugin for WordPress is vulnerable to Authentication Bypass via unauthenticated password reset in all versions up to, and including, 2.0.0. This is due to the `ssoprocess_ajax()` function — registered on `wp_ajax…

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.

Affected products

Britcoder Single Sign On For Tng — versions 0

Weakness classification (CWE)

CWE-620

Public proof-of-concept exploits

Instructor-Admin/CVE-2026-15964-PoC

References

Frequently asked questions

What is CVE-2026-15964?: CVE-2026-15964 is a critical-severity vulnerability in Britcoder Single Sign On For Tng, classified under CWE-620. CVSS score: 9.8/10. Published 2026-08-01.
How severe is CVE-2026-15964?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2026-15964 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.