Resource Exhaustion Vulnerability in Appointment Scheduler by PHPJabbers
CVE-2023-48840

7.5HIGH

Key Information:

Vendor

PHPjabbers

Status
Appointment Scheduler
Vendor
CVE Published:
7 December 2023

What is CVE-2023-48840?

The Appointment Scheduler 3.0 from PHPJabbers exhibits a serious vulnerability due to a lack of effective rate limiting in the pjActionAjaxSend function. This flaw allows attackers to exploit the system, potentially leading to resource exhaustion, which can degrade performance or lead to service denial. With this vulnerability, attackers can purposely overload the server by sending multiple requests, ultimately disrupting the availability of the Appointment Scheduler service.

References

https://www.phpjabbers.com/appointment-scheduler/
http://packetstormsecurity.com/files/176056

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.