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SANS Stormcast Monday, December 1st, 2025: More ClickFix; Teams Guest Access; Geoserver XXE Vulnerablity
November 30, 2025
5:42
1.06 MB ( 3.72 MB less)
Downloads: 0
Fake adult websites pop realistic Windows Update screen to deliver stealers via ClickFix
The latest variant of ClickFix tricks users into copy/pasting commands by displaying a fake blue screen of death.
https://www.acronis.com/en/tru/posts/fake-adult-websites-pop-realistic-windows-update-screen-to-deliver-stealers-via-clickfix/
B2B Guest Access Creates an Unprotected Attack Vector
Users may be tricked into joining an external Teams workspace as a guest, bypassing protections typically enabled for Teams workspaces.
https://www.ontinue.com/resource/blog-microsoft-chat-with-anyone-understanding-phishing-risk/
Geoserver XXE Vulnerability CVE-2025-58360
Geoserver patched an external XML entity (XXE) vulnerability.
https://helixguard.ai/blog/CVE-2025-58360