Description
The chunked upload API (ApiUpload) in MediaWiki before 1.23.11, 1.24.x before 1.24.4, and 1.25.x before 1.25.3 allows remote authenticated users to cause a denial of service (disk consumption) via a file upload using one byte chunks.
Remediation
References
Related Vulnerabilities
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Oracle Database Server CVE-2019-2569 Vulnerability (CVE-2019-2569)
PHP Incorrect Calculation of Buffer Size Vulnerability (CVE-2025-1861)