| Package | Affected versions | Patched versions |
|---|---|---|
| semantic mediawiki | ≥ 3.0.0, < 7.3.1 | 7.3.1 |
Semantic MediaWiki from 3.0.0 before 7.3.1 contains an algorithmic complexity vulnerability in TermParser::normalize_compact_form() that allows unauthenticated attackers to cause quadratic CPU consumption. Attackers can submit long search terms with many distinct in:(...) or has:(...) expressions to Special:Search to exhaust PHP search workers when the extended search engine is enabled.
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