Description
Semantic MediaWiki from 2.5.0 before 7.3.1 contains an uncontrolled resource consumption vulnerability that allows low-privilege editors to bypass smwgMaxNumRecurringEvents by supplying a large limit parameter. Attackers can save pages using #set_recurring_event without an end date to generate thousands or millions of date subobjects, exhausting CPU, memory, and database resources.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
SemanticMediaWiki SemanticMediaWiki
Default version status: unaffected
2.5.0 to < 7.3.1affected7.3.1unaffected
References
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-vxrm-2g9f-2vqh ↗
- https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/215599f0fc03274fd4cee9ba0f7162f5a38c031b ↗
- https://www.vulncheck.com/advisories/semantic-mediawiki-2.5.0-before-7.3.1-resource-exhaustion-via-set-recurring-event ↗