CVE-2026-113356

DokuWiki before 2026-07-14c PHP Object Injection via Draft Race Condition

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.

Affected

DokuWiki

CVSS v4.0 VULNCHECK

7.7 HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.54% chance of exploitation in the next 30 days, 46th percentile

Published

2026-10-20

Proof-of-concept exploits (1)

• https://gist.github.com/sebastianosrt/a0c0252ca335e8e8b2c96fecf1f64538find archive

CVE references

• dokuwiki/dokuwiki/blob/b61db59a8091fc992ac02959a9a09b576cc43ce0/inc/Draft.php#L122REFERENCE
• dokuwiki/dokuwiki/commit/1531802afb2ac3eea147a887600fa5750e74e681REFERENCE
• dokuwiki/dokuwiki/issues/4752REFERENCE
• dokuwiki/dokuwiki/releases/tag/release-2026-07-14cREFERENCE
• https://www.vulncheck.com/advisories/dokuwiki-before-2026-07-14c-php-object-injection-via…REFERENCE

References

• CVE Record
• NVD entry