CVE-2025-53371

DiscordNotifications allows DOS, SSRF, and possible RCE through requests to user-controlled URLs

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.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.03%
Affected: miraheze DiscordNotifications
Published at:
Updated at:

References

Link Tags
https://github.com/miraheze/DiscordNotifications/security/advisories/GHSA-gvfx-p3h5-qf65
https://github.com/miraheze/DiscordNotifications/commit/1f20d850cbcce5b15951c7c6127b87b927a5415e

Frequently Asked Questions

What is the severity of CVE-2025-53371?
CVE-2025-53371 has been scored as a critical severity vulnerability.
How to fix CVE-2025-53371?
To fix CVE-2025-53371, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-53371 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-53371 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-53371?
CVE-2025-53371 affects miraheze DiscordNotifications.
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