What is the severity of CVE-2019-18611?

CVE-2019-18611 has been rated as a medium severity vulnerability.

How do I fix CVE-2019-18611?

To fix CVE-2019-18611, update the CheckUser extension to a version later than 1.34.

Who is affected by CVE-2019-18611?

Users with access to the CheckUser extension prior to version 1.34 may be affected by CVE-2019-18611.

What type of information is exposed in CVE-2019-18611?

CVE-2019-18611 allows sensitive oversighted edit summaries to be visible to unauthorized users through the MediaWiki API.

Is CVE-2019-18611 related to MediaWiki versions?

Yes, CVE-2019-18611 specifically impacts MediaWiki versions up to and including 1.34.

Vulnerability/
CVE-2019-18611

medium

6.5

CWE

200

29/10/2019

5/8/2024

CVE-2019-18611: Infoleak

First published: Tue Oct 29 2019(Updated: )

An issue was discovered in the CheckUser extension through 1.34 for MediaWiki. Certain sensitive information within oversighted edit summaries made available via the MediaWiki API was potentially visible to users with various levels of access to this extension. Said users should not have been able to view these oversighted edit summaries via the MediaWiki API.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Mediawiki Checkuser	<=1.34

Remedy

https://gerrit.wikimedia.org/r/q/Ie0aa0df2b3f03d8b910733f1b5e600a0dc978765

Remedy

https://phabricator.wikimedia.org/T234862

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2019-18611?
CVE-2019-18611 has been rated as a medium severity vulnerability.
How do I fix CVE-2019-18611?
To fix CVE-2019-18611, update the CheckUser extension to a version later than 1.34.
Who is affected by CVE-2019-18611?
Users with access to the CheckUser extension prior to version 1.34 may be affected by CVE-2019-18611.
What type of information is exposed in CVE-2019-18611?
CVE-2019-18611 allows sensitive oversighted edit summaries to be visible to unauthorized users through the MediaWiki API.
Is CVE-2019-18611 related to MediaWiki versions?
Yes, CVE-2019-18611 specifically impacts MediaWiki versions up to and including 1.34.

collector/nvd-index
agent/references
agent/type
agent/remedy
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/severity
agent/author
agent/weakness
agent/last-modified-date
agent/description
agent/event
agent/tags
agent/first-publish-date
agent/source
vendor/mediawiki
canonical/mediawiki checkuser
version/mediawiki checkuser/1.34

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Frequently Asked Questions

What is the severity of CVE-2019-18611?
CVE-2019-18611 has been rated as a medium severity vulnerability.
How do I fix CVE-2019-18611?
To fix CVE-2019-18611, update the CheckUser extension to a version later than 1.34.
Who is affected by CVE-2019-18611?
Users with access to the CheckUser extension prior to version 1.34 may be affected by CVE-2019-18611.
What type of information is exposed in CVE-2019-18611?
CVE-2019-18611 allows sensitive oversighted edit summaries to be visible to unauthorized users through the MediaWiki API.
Is CVE-2019-18611 related to MediaWiki versions?
Yes, CVE-2019-18611 specifically impacts MediaWiki versions up to and including 1.34.