Auth bypass in Kanboard
CVE-2026-25924
Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, a security control bypass vulnerability in Kanboard allows an authenticated administrator to achieve full Remote Code Execution (RCE). Although the application correctly hides the plugin installation interface when the PLUGIN_INSTALLER configuration is set to false, the underlying backend endpoint fails to verify this security setting. An attacker can exploit this oversight to force the server to download and install a malicious plugin, leading to arbitrary code execution. This vulnerability is fixed in 1.2.50.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.008 · change: +0.003
Affected products
- Kanboard — versions < 1.2.50
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/kanboard/kanboard/security/advisories/GHSA-grch-p7vf-vc4f (Exploit, Mitigation, Vendor Advisory)
- github.com/kanboard/kanboard/commit/b9ada89b1a64034612fc4262b88c42458c0d6ee4 (Patch)
- github.com/kanboard/kanboard/releases/tag/v1.2.50 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-25924?
- CVE-2026-25924 is a high-severity vulnerability in Kanboard, classified under Incorrect Authorization. CVSS score: 8.4/10. Published 2026-02-11.
- How severe is CVE-2026-25924?
- High severity. CVSS v3 base score is 8.4 out of 10.
- Is CVE-2026-25924 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.