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TechRadar
TechRadar
Efosa Udinmwen

'Chaining vulnerabilities is the hallmark of a sophisticated attack': 750,000 websites must be patched as Microsoft's popular open source Dotnetnuke CMS hit by an XSS flaw that allows attackers to hijack admin sessions and take over entire web servers

Microsoft
A hooded figure in front of a laptop. Digital symbols obscure his face and appear to be pouring out of his head.
  • Malicious SVG uploads in DotNetNuke execute JavaScript when clicked
  • Attack requires only one admin click to trigger full server compromise
  • XSS flaw allows attackers to act using the victim’s authenticated session

Cybercriminals can now chain exploits together and gain control of web servers by exploiting a critical cross-site scripting (XSS) vulnerability in the DotNetNuke CMS.

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