VDB-172689 · CVE-2021-30159 · T272386

MediaWiki up to 1.31.11/1.35.1 isValidMoveTarget denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in MediaWiki up to 1.31.11/1.35.1. Affected by this vulnerability is the function MovePage::isValidMoveTarget. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2021-30159. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in MediaWiki up to 1.31.11/1.35.1 (Content Management System). It has been classified as problematic. This affects the function MovePage::isValidMoveTarget. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on integrity, and availability.

The weakness was shared 04/09/2021 as T272386. The advisory is shared at phabricator.wikimedia.org. This vulnerability is uniquely identified as CVE-2021-30159. Technical details are known, but no exploit is available.

Upgrading to version 1.31.12 or 1.35.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Content Management System

Name

MediaWiki

Version

License

open-source

Website

Product: https://www.mediawiki.org/wiki/MediaWiki

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.31.12/1.35.2

Timelineinfo

04/06/2021 🔍
04/09/2021 +3 days 🔍
04/09/2021 +0 days 🔍
04/15/2021 +6 days 🔍

Sourcesinfo

Product: mediawiki.org

Advisory: T272386
Status: Confirmed

CVE: CVE-2021-30159 (🔍)
GCVE (CVE): GCVE-0-2021-30159
GCVE (VulDB): GCVE-100-172689

Entryinfo

Created: 04/09/2021 13:04
Updated: 04/15/2021 11:19
Changes: 04/09/2021 13:04 (39), 04/15/2021 11:19 (5)
Complete: 🔍
Cache ID: 216::103