What is the CVSS score of CVE-2023-48840?

CVE-2023-48840 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2023-48840?

Yes, a public proof-of-concept exploit is available for CVE-2023-48840. Prioritise patching immediately. EPSS: 1.1%.

Appointment Scheduler CVE-2023-48840

HIGH

Uncontrolled Resource Consumption (CWE-400)

2023-12-07 cve@mitre.org

Denial Of Service Appointment Scheduler

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Dec 07, 2023 - 07:15 nvd

HIGH 7.5

DescriptionNVD

A lack of rate limiting in pjActionAjaxSend in Appointment Scheduler 3.0 allows attackers to cause resource exhaustion.

AnalysisAI

A lack of rate limiting in pjActionAjaxSend in Appointment Scheduler 3.0 allows attackers to cause resource exhaustion. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. A lack of rate limiting in pjActionAjaxSend in Appointment Scheduler 3.0 allows attackers to cause resource exhaustion. Affected products include: Phpjabbers Appointment Scheduler.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.