Appointment Scheduler vulnerability

A Cross-Site Request Forgery (CSRF) vulnerability has been identified in multiple PHP Jabbers scripts. The lack of CSRF tokens or appropriate SameSite attributes allows an attacker to send unauthorized requests in the context of an authenticated user, leading to unauthorized administrative actions, such as creating new admin accounts. This issue was fixed in the versions specified in the affected products list.

Published 31 Jul 2026Updated 29 Sep 20262 sources
CVSS 6.9

What happened

A Cross-Site Request Forgery (CSRF) vulnerability has been identified in multiple PHP Jabbers scripts. The lack of CSRF tokens or appropriate SameSite attributes allows an attacker to send unauthorized requests in the context of an authenticated user, leading to unauthorized administrative actions, such as creating new admin accounts. This issue was fixed in the versions specified in the affected products list.

Affected versions

Appointment Scheduler: before 4.1 (custom); before 2.1 (custom); before 5.1 (custom); before 6.1 (custom); before 6.0 (custom); before 3.1 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.