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CVE-2021-44855

Date: December 25, 2022

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.

Language: JS

Severity Score

Related Resources (8)

https://phabricator.wikimedia.org/T293589
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-44855
https://nvd.nist.gov/vuln/detail/CVE-2021-44855
https://security-tracker.debian.org/tracker/CVE-2021-44855
https://github.com/wikimedia/mediawiki-extensions-VisualEditor/commit/839b64d882ee188ae31fa9853c40547d8aca93b2
https://security.gentoo.org/glsa/202305-24
https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/
https://www.mend.io/vulnerability-database/CVE-2021-44855

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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