CVE-2026-113356
HighCVSS 7.5Summary
DokuWiki before 2026-07-14c contains a PHP object injection vulnerability in Draft::getDraftText() that passes draft file contents to unserialize() without restricting allowed classes. Authenticated users with edit rights can race concurrent draft rewrites to splice serialized data, instantiating gadgets like MemoryIndex or Installer.
Risk Assessment
An authenticated editor can achieve arbitrary file write, deletion, and code execution.
Recommendation
Update DokuWiki to version 2026-07-14c or later.
Other vulnerabilities in DokuWiki
See all- CVE-2026-37106Critical
In DokuWiki 2025-05-14b 'Librarian' 56.2, a remote attacker can create an account via the register function in inc/auth.php. The supplier disputes this as a vulnerability, stating it is intentional behavior when self-registration is enabled (a non-default feature) and there is no scenario where it would be enabled without administrator knowledge.
- CVE-2026-26477Medium
Dokuwiki version 2025-05-14b has a denial of service vulnerability in the media_upload_xhr() function in media.php. A remote attacker can cause a denial of service.
- CVE-2023-34408Medium
DokuWiki before version 2023-04-04a allows XSS via RSS titles.
Original NVD description (English source)
DokuWiki before 2026-07-14c contains a PHP object injection vulnerability in Draft::getDraftText() that passes draft file contents to unserialize() without restricting allowed classes. Authenticated users with edit rights can race concurrent draft rewrites to splice serialized data, instantiating gadgets like MemoryIndex or Installer for arbitrary file write, deletion, and code execution.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS