High severity · published Oct 27, 2026
CVE-2026-116873
Semantic MediaWiki 7.3.0 Missing Authorization via smwtask API run-joblist and update
New
7.3
CVSS
0.2%
EPSS
No
On KEV
Description
Semantic MediaWiki from 7.3.0 before 7.3.1 contains a missing authorization vulnerability in the smwtask API module that allows unauthenticated attackers to run queued jobs and force store updates. Attackers can use the public anonymous CSRF token with run-joblist to execute arbitrary job types in unbounded counts, or invoke update on sysop-protected pages, leaking page titles and exhausting resources.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
SemanticMediaWiki · SemanticMediaWiki
7.3.0 before 7.3.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116873
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116873
github.com
https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-rjqv-6r83-pg8v
www.vulncheck.com
https://www.vulncheck.com/advisories/semantic-mediawiki-7.3.0-missing-authorization-via-smwtask-api-run-joblist-and-update
More from SemanticMediaWiki
8.6
CVE-2025-61682
Semantic MediaWiki vulnerable to stored XSS through wikitext via improper use of non-reserved data attributes
7.5
CVE-2026-116878
Semantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via Special:PropertyLabelSimilarity
7.5
CVE-2026-116872
Semantic MediaWiki 3.0.0 before 7.3.1 Denial of Service via Special:Search Compact Filters
7.5
CVE-2026-116871
Semantic MediaWiki 3.0.0 before 7.3.1 Uncontrolled Recursion via Special:Ask
7.3
CVE-2026-116890
Semantic MediaWiki 3.0.0 before 7.3.0 Missing Authorization via smwtask API