SEPTEMBER 19, 2026
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Case File

CVE-2026-53527

HIGH · CVSS 8.8 EPSS 0.24% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-21 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

LeafWiki versions 0.1.0 through 0.10.0 are vulnerable to a privilege escalation flaw in the user update API, allowing authenticated users to elevate their roles from regular users to administrators. This poses a significant risk, particularly for instances with untrusted users, as it could lead to unauthorized access and control over the wiki. Organizations using LeafWiki should prioritize updating to version 0.10.1 or higher and implement strict access controls to mitigate this vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-53527
Severity
HIGH
CVSS
8.8
EPSS
0.24%

Original NVD Description

LeafWiki is a self-hosted wiki. Versions 0.1.0 through 0.10.0 have a privilege escalation vulnerability in the user update API. An authenticated user could update their own account role and escalate privileges from a regular user, such as `viewer`, to `admin`. Exploitation requires a valid authenticated LeafWiki user account. Instances without public registration and with only trusted users are at lower practical risk. Users should update to version 0.10.1 or greater. Until a patch is available, operators should restrict account creation and ensure that only trusted users have accounts on affected LeafWiki instances. If possible, access to the user update API should be restricted to trusted users or administrators only.