Semantic MediaWiki 3.0.0 before 7.3.1 Denial of Service via Special:Search Compact Filters
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.3.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Semantic MediaWiki, an extension for the MediaWiki wiki platform, is affected by this vulnerability. An unauthenticated attacker can submit specially crafted long search queries to the wiki's search page that consume excessive server processing power, potentially making the site slow or unavailable to other users.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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.
Timeline
- CVE published
- Record last updated
- First seen by cve.now
Affected versions
- SemanticMediaWiki SemanticMediaWiki
From 3.0.0 · fixed in 7.3.1