CVE-2023-36133

Name: CVE-2023-36133
Creator: NVD / NIST
Published: 2023-08-04T00:15:12.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2023-36133 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. PHPJabbers Availability Booking Calendar 5.0 is vulnerable to User Account Takeover through username/password change.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

PHPJabbers Availability Booking Calendar 5.0 is vulnerable to User Account Takeover through username/password change.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.75%

50.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Phpjabbers	Availability Booking Calendar	5.0

References

Timeline

Published: Aug 4, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-36133?

PHPJabbers Availability Booking Calendar 5.0 is vulnerable to User Account Takeover through username/password change.

How severe is CVE-2023-36133?

CVE-2023-36133 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2023-36133?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-36133?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST