CVE-2026-113356

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.

CVSS 4.0

7.7CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

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

EPSS

0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-25)

CWE

CWE-502

Published

2026-10-20

Modified

2026-10-20

Record from

the NVD, synced 2026-10-21

References

• https://gist.github.com/sebastianosrt/a0c0252ca335e8e8b2c96fecf1f64538
• https://github.com/dokuwiki/dokuwiki/blob/b61db59a8091fc992ac02959a9a09b576cc43ce0/inc/Draft.php#L122
• https://github.com/dokuwiki/dokuwiki/commit/1531802afb2ac3eea147a887600fa5750e74e681
• https://github.com/dokuwiki/dokuwiki/issues/4752
• https://github.com/dokuwiki/dokuwiki/releases/tag/release-2026-07-14c

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