Auth bypass in Logon Kb Support
CVE-2024-8548
The KB Support – WordPress Help Desk and Knowledge Base plugin for WordPress is vulnerable to unauthorized modification and loss of data due to a missing capability check on several functions in the /includes/ajax-functions.php file all versions up to, and including, 1.6.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform multiple administrative actions, such as replying to arbitrary tickets, updating the status of any post, deleting any post, adding notes to tickets, flagging or unflagging tickets, and adding or removing ticket participants.
Vulnerability class: Broken Access Control
EPSS: 0.004 (29.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com
Frequently asked questions
- What is CVE-2024-8548?
- CVE-2024-8548 is a high-severity vulnerability in Logon Kb Support, classified under Missing Authorization. CVSS score: 8.1/10. Published 2024-10-01.
- How severe is CVE-2024-8548?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2024-8548 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.