7.7
HIGH CVSS 4.0
CVE-2026-113356
DokuWiki before 2026-07-14c PHP Object Injection via Draft Race Condition
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.

INFO

Published Date :

Oct. 20, 2026, 11:17 a.m.

Last Modified :

Oct. 20, 2026, 11:17 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-113356 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Dokuwiki dokuwiki
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 HIGH MITRE-CVE
CVSS 3.1 HIGH [email protected]
CVSS 4.0 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 HIGH [email protected]
Solution
Update DokuWiki to patch a PHP object injection vulnerability allowing arbitrary code execution.
  • Update DokuWiki to version 2026-07-14c or later.
  • Apply vendor patches immediately.
  • Remove or restrict edit rights if possible.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-113356 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-113356 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-113356 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-113356 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 20, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 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
    Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-502
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/113xxx/CVE-2026-113356.json">CVE-2026-113356</a>
    Added Reference https://gist.github.com/sebastianosrt/a0c0252ca335e8e8b2c96fecf1f64538
    Added Reference https://github.com/dokuwiki/dokuwiki/blob/b61db59a8091fc992ac02959a9a09b576cc43ce0/inc/Draft.php#L122
    Added Reference https://github.com/dokuwiki/dokuwiki/commit/1531802afb2ac3eea147a887600fa5750e74e681
    Added Reference https://github.com/dokuwiki/dokuwiki/issues/4752
    Added Reference https://github.com/dokuwiki/dokuwiki/releases/tag/release-2026-07-14c
    Added Reference https://www.vulncheck.com/advisories/dokuwiki-before-2026-07-14c-php-object-injection-via-draft-race-condition
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.