CVE-2022-34750

An issue was discovered in MediaWiki through 1.38.1

published June 28, 2022

CVSS
—
EPSS
1%
Percentile
69.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01283 · 69.9th percentile
Published
2022-06-28T12:20Z
EPSS history
Timeline
  • 28 JUN 12:20Z
    An issue was discovered in MediaWiki through 1.38.1
    cvelistv5