CVE-2016-7964
Publication date 31 October 2016
Last updated 25 August 2025
Ubuntu priority
Description
The sendRequest method in HTTPClient Class in file /inc/HTTPClient.php in DokuWiki 2016-06-26a and older, when media file fetching is enabled, has no way to restrict access to private networks. This allows users to scan ports of internal networks via SSRF, such as 10.0.0.1/8, 172.16.0.0/12, and 192.168.0.0/16.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| dokuwiki | ||
| 18.04 LTS bionic | Ignored | |
| 16.04 LTS xenial | Ignored | |
| 14.04 LTS trusty | Not in release | |
Notes
ebarretto
Setting status as ignored since upstream won't fix it. According to maintainer: The only way I see to properly fix this is to add a whitelist feature where an Admin can define the external hosts and IPs the wiki is allowed to contact. However for not breaking every already installed wiki we would need to keep this list empty (allowing all). TBH I feel like it's not our task to secure other computers. If a wiki server runs within a network that should not be reached from that wiki server, the wiki server should be isolated properly through at least outgoing firewall rules or by a proper DMZ setup.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.6 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |