Description
DiscordNotifications is an extension for MediaWiki that sends notifications of actions in your Wiki to a Discord channel. DiscordNotifications allows sending requests via curl and file_get_contents to arbitrary URLs set via $wgDiscordIncomingWebhookUrl and $wgDiscordAdditionalIncomingWebhookUrls. This allows for DOS by causing the server to read large files. SSRF is also possible if there are internal unprotected APIs that can be accessed using HTTP POST requests, which could also possibly lead to RCE. This vulnerability is fixed in commit 1f20d850cbcce5b15951c7c6127b87b927a5415e.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/miraheze/DiscordNotifications/security/advisories/GHSA-gvfx-p3h5-qf65
Scores
CVSS v3
9.1
EPSS
0.0008
EPSS Percentile
22.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
CWE-918
Status
published
Products (1)
miraheze/DiscordNotifications
< 1f20d850cbcce5b15951c7c6127b87b927a5415e
Published
Jul 10, 2025
Tracked Since
Feb 18, 2026