All vulnerabilities

Servers and applications

CVE-2020-26120

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 jQuery's parseHTML method, which can cause image callbacks to fire even without the element being appended to the DOM.

Severity
Medium 6.1
Published
27 Sept 2020
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.34.4
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Every version before 1.34.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-26120
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-26120