| Package | Affected versions | Patched versions |
|---|---|---|
| mediawiki | = 1.19= 1.19.0= 1.19.1= 1.19.10= 1.19.11= 1.19.12= 1.19.13= 1.19.14= 1.19.15= 1.19.16= 1.19.2= 1.19.3= 1.19.4= 1.19.5= 1.19.6= 1.19.7= 1.19.8= 1.19.9= 1.20.1= 1.20.2= 1.20.3= 1.20.4= 1.20.5= 1.20.6= 1.20.7= 1.20.8= 1.21.1= 1.21.10= 1.21.2= 1.21.3= 1.21.4= 1.21.5= 1.21.6= 1.21.7= 1.21.8= 1.21.9= 1.22.0= 1.22.1= 1.22.2= 1.22.3= 1.22.4= 1.22.5= 1.22.6= 1.22.7= 1.22.8= 1.23.0= 1.23.1≤ 1.19.17 |
The JSONP endpoint in includes/api/ApiFormatJson.php in MediaWiki before 1.19.18, 1.20.x through 1.22.x before 1.22.9, and 1.23.x before 1.23.2 accepts certain long callback values and does not restrict the initial bytes of a JSONP response, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks, and obtain sensitive information, via a crafted OBJECT element with SWF content consistent with a restricted character set.
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