| Package | Affected versions | Patched versions |
|---|---|---|
| mediawiki/core | ≥ 1.31.0, < 1.31.9≥ 1.32.0, < 1.34.3≥ 1.35.0-rc.0, < 1.35.0 | 1.31.91.34.31.35.0 |
| mediawiki | ≥ 1.32.0, < 1.34.4< 1.31.10 | 1.34.41.31.10 |
In MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.
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