What is CVE-2021-44855?

CVE-2021-44855 is an issue in MediaWiki before version 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1 that allows Blind Stored XSS via a URL to the Upload Image feature.

How severe is CVE-2021-44855?

CVE-2021-44855 has a severity level of medium with a CVSS score of 5.4.

How can I fix CVE-2021-44855?

To fix CVE-2021-44855, it is recommended to upgrade MediaWiki to version 1.35.5, 1.36.3, or 1.37.1 depending on your current installation.

Where can I find more information about CVE-2021-44855?

You can find more information about CVE-2021-44855 in the following references: [1] [2] [3].

What is the Common Weakness Enumeration (CWE) for CVE-2021-44855?

The Common Weakness Enumeration (CWE) for CVE-2021-44855 is CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')).

Vulnerability/
CVE-2021-44855

medium

5.4

CWE

26/12/2022

4/8/2024

CVE-2021-44855: XSS

First published: Mon Dec 26 2022(Updated: )

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. There is Blind Stored XSS via a URL to the Upload Image feature.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
debian/mediawiki		1:1.31.16-1+deb10u2 1:1.31.16-1+deb10u6 1:1.35.11-1~deb11u1 1:1.35.13-1~deb11u1 1:1.39.4-1~deb12u1 1:1.39.5-1~deb12u1 1:1.39.5-1
MediaWiki MediaWiki	<1.35.5
MediaWiki MediaWiki	>=1.36.0<1.36.3
MediaWiki MediaWiki	=1.37.0
MediaWiki MediaWiki	=1.37.0-rc0
MediaWiki MediaWiki	=1.37.0-rc1
MediaWiki MediaWiki	=1.37.0-rc2

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Reference Links

Frequently Asked Questions

What is CVE-2021-44855?
CVE-2021-44855 is an issue in MediaWiki before version 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1 that allows Blind Stored XSS via a URL to the Upload Image feature.
How severe is CVE-2021-44855?
CVE-2021-44855 has a severity level of medium with a CVSS score of 5.4.
How can I fix CVE-2021-44855?
To fix CVE-2021-44855, it is recommended to upgrade MediaWiki to version 1.35.5, 1.36.3, or 1.37.1 depending on your current installation.
Where can I find more information about CVE-2021-44855?
You can find more information about CVE-2021-44855 in the following references: [1] [2] [3].
What is the Common Weakness Enumeration (CWE) for CVE-2021-44855?
The Common Weakness Enumeration (CWE) for CVE-2021-44855 is CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')).

collector/security-tracker-debian
agent/type
agent/first-publish-date
agent/last-modified-date
agent/references
collector/nvd-index
agent/software-canonical-lookup-request
agent/weakness
agent/severity
agent/author
agent/softwarecombine
agent/tags
agent/description
agent/event
collector/mitre-cve
source/MITRE
package-manager/debian
vendor/mediawiki
canonical/mediawiki mediawiki
version/mediawiki mediawiki/1.36.0
version/mediawiki mediawiki/1.37.0
version/mediawiki mediawiki/1.37.0-rc0
version/mediawiki mediawiki/1.37.0-rc1
version/mediawiki mediawiki/1.37.0-rc2

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