CommentBox Extension up to 1.35.2 on MediaWiki Configuration cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in CommentBox Extension up to 1.35.2 on MediaWiki. This issue affects some unknown processing of the component Configuration Handler. This manipulation causes cross site scripting. This vulnerability is tracked as CVE-2021-31550. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic was found in CommentBox Extension up to 1.35.2 on MediaWiki. Affected by this vulnerability is some unknown functionality of the component Configuration Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity.

The weakness was disclosed 04/22/2021. It is possible to read the advisory at phabricator.wikimedia.org. This vulnerability is known as CVE-2021-31550. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at gerrit.wikimedia.org.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: gerrit.wikimedia.org

Timelineinfo

04/22/2021 🔍
04/22/2021 +0 days 🔍
04/22/2021 +0 days 🔍
04/23/2021 +1 days 🔍

Sourcesinfo

Advisory: phabricator.wikimedia.org
Status: Confirmed

CVE: CVE-2021-31550 (🔍)
GCVE (CVE): GCVE-0-2021-31550
GCVE (VulDB): GCVE-100-173287

Entryinfo

Created: 04/22/2021 08:59
Updated: 04/23/2021 20:21
Changes: 04/22/2021 08:59 (38), 04/23/2021 20:18 (5), 04/23/2021 20:21 (18)
Complete: 🔍
Cache ID: 216::103

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