TI-2025-05249 Aliases CVE-2025-5821 GHSA-8v37-q45v-wgrx

Case Theme User <= 1.0.3 - Authentication Bypass via Social Login

MEDIUM 50CWE-288Published 2025-08-23 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-288.

Summary

The Case Theme User plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.0.3. This is due to the plugin not properly logging in a user with the data that was previously verified through the facebook_ajax_login_callback() function. This makes it possible for unauthenticated attackers to log in as administrative users, as long as they have an existing account on the site which can easily be created by default through the temp user functionality, and access to the administrative user's email.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00761 55th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Case-Themes	Case Theme User	up to 1.0.3	—	No fix listed	CNA

Case Theme User VendorCase-Themes Affected up to 1.0.3 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-5821
2026-10-03 Alias added: GHSA-8v37-q45v-wgrx

References

Other 2

TI-2025-38370 WordPress Case Addons plugin < 1.3.0 - Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 9.9
TI-2025-23395 WordPress CTUsers plugin <= 1.0.0 - Local File Inclusion Vulnerability CVSS 3.1HIGH 7.5
TI-2025-05234 WordPress Case Theme User < 1.0.4 - Local File Inclusion Vulnerability CVSS 3.1HIGH 7.5
TI-2026-17923 WordPress Booked plugin <= 3.0.0 - Account Takeover vulnerability CVSS 3.1MEDIUM 6.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences