MediaWiki up to 1.36.1 Special:Contributions resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in MediaWiki up to 1.36.1 and classified as problematic. The affected element is an unknown function of the component Special:Contributions. The manipulation results in resource consumption. This vulnerability is identified as CVE-2021-41800. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in MediaWiki up to 1.36.1 (Content Management System). It has been classified as problematic. Affected is an unknown code of the component Special:Contributions. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability.

The weakness was released 10/11/2021 as 781caf83dba90c18349f930bbaaa0e89f003f874. The advisory is available at github.com. This vulnerability is traded as CVE-2021-41800 since 09/29/2021. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 1.36.2 eliminates this vulnerability. Applying the patch 781caf83dba90c18349f930bbaaa0e89f003f874 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-3541). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.36.2
Patch: 781caf83dba90c18349f930bbaaa0e89f003f874

Timelineinfo

09/29/2021 🔍
10/11/2021 +12 days 🔍
10/11/2021 +0 days 🔍
05/29/2026 +1691 days 🔍

Sourcesinfo

Product: mediawiki.org

Advisory: 781caf83dba90c18349f930bbaaa0e89f003f874
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41800 (🔍)
GCVE (CVE): GCVE-0-2021-41800
GCVE (VulDB): GCVE-100-184146
EUVD: 🔍

Entryinfo

Created: 10/11/2021 15:53
Updated: 05/29/2026 06:28
Changes: 10/11/2021 15:53 (24), 10/11/2021 15:56 (18), 10/14/2021 12:54 (2), 05/29/2026 06:28 (15)
Complete: 🔍
Committer: roga
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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