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MediaWiki Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2020-26120 - Vulnerability Database
MediaWiki

MediaWiki Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2020-26120

Medium
Reference: CVE-2020-26120
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2020-26120
Title: MediaWiki Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability
Overview:

XSS exists in the MobileFrontend extension for MediaWiki before 1.34.4 because section.line is mishandled during regex section line replacement from PageGateway. Using crafted HTML an attacker can elicit an XSS attack via jQuery39s parseHTML method which can cause image callbacks to fire even without the element being appended to the DOM.