Resource exhaustion in Phpjabbers Availability Booking Calendar

CVE-2023-48831

A lack of rate limiting in pjActionAJaxSend in Availability Booking Calendar 5.0 allows attackers to cause resource exhaustion.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.012 (64.0th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-48831?
CVE-2023-48831 is a high-severity vulnerability in Phpjabbers Availability Booking Calendar, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-12-07.
How severe is CVE-2023-48831?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-48831 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.