Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2022-34750

An issue was discovered in MediaWiki through 1.38.1. The lemma length of a Wikibase lexeme is currently capped at a thousand characters. Unfortunately, this length is not validated, allowing much larger lexemes to be created, which introduces various denial-of-service attack vectors within the Wikibase and WikibaseLexeme extensions. This is related to Special:NewLexeme and Special:NewProperty.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 46.2%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
Products affected by CVE-2022-34750


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