CVE-2026-113356

high

Description

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.

References

https://www.vulncheck.com/advisories/dokuwiki-before-2026-07-14c-php-object-injection-via-draft-race-condition

https://github.com/dokuwiki/dokuwiki/releases/tag/release-2026-07-14c

https://github.com/dokuwiki/dokuwiki/issues/4752

https://github.com/dokuwiki/dokuwiki/commit/1531802afb2ac3eea147a887600fa5750e74e681

https://github.com/dokuwiki/dokuwiki/blob/b61db59a8091fc992ac02959a9a09b576cc43ce0/inc/Draft.php#L122

https://gist.github.com/sebastianosrt/a0c0252ca335e8e8b2c96fecf1f64538

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104927

Details

Source: Mitre, NVD

Published: 2026-10-20

Updated: 2026-10-20

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

CVSS v4

Base Score: 7.7

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00542