CVE-2025-53371

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

Severity Score

9.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-06-27 CVE Reserved
2025-07-10 CVE Published
2025-07-10 CVE Updated
2025-07-11 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-918: Server-Side Request Forgery (SSRF)

CAPEC

References (2)

URL	Tag	Source
https://github.com/miraheze/DiscordNotifications/commit/1f20d850cbcce5b15951c7c6127b87b927a5415e	X_refsource_misc
https://github.com/miraheze/DiscordNotifications/security/advisories/GHSA-gvfx-p3h5-qf65	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Miraheze Search vendor "Miraheze"		DiscordNotifications Search vendor "Miraheze" for product "DiscordNotifications"				< 1 Search vendor "Miraheze" for product "DiscordNotifications" and version " < 1"		en		Affected