SANS Stormcast Thursday, December 4th, 2025: CDN Headers; React Vulnerabiity; PickleScan Patch
Attempts to Bypass CDNs
Our honeypots recently started receiving scans that included CDN specific headers.
https://isc.sans.edu/diary/Attempts%20to%20Bypass%20CDNs/32532
React Vulnerability CVE-2025-55182
React patched a critical vulnerability in React server components. Exploitation is likely imminent.
https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
Unveiling 3 PickleScan Vulnerabilities
The PyTorch AI model security tool, PickleScan, has patched three critical vulnerabilities.
https://jfrog.com/blog/unveiling-3-zero-day-vulnerabilities-in-picklescan/
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SANS Stormcast Wednesday, December 3rd, 2025: SmartTube Compromise; NPM Malware Prompt Injection Attempt; Angular XSS Vulnerability
SmartTube Android App Compromise
The key a developer used to sign the Android YouTube player SmartTube was compromised and used to publish a malicious version.
https://github.com/yuliskov/SmartTube/issues/5131#issue-3670629826
https://github.com/yuliskov/SmartTube/releases/tag/notification
Two Years, 17K Downloads: The NPM Malware That Tried to Gaslight Security Scanners
Over the course of two years, a malicious NPM package was updated to evade detection and has now been identified, in part, due to its attempt to bypass AI scanners through prompt injection.
https://www.koi.ai/blog/two-years-17k-downloads-the-npm-malware-that-tried-to-gaslight-security-scanners
Stored XSS Vulnerability via SVG Animation, SVG URL, and MathML Attributes
Angular fixed a store XSS vulnerability.
https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49
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SANS Stormcast Tuesday, December 2nd, 2025: Analyzing ToolShell from Packdets; Android Update; Long Game Malicious Browser Ext.
Hunting for SharePoint In-Memory ToolShell Payloads
A walk-through showing how to analyze ToolShell payloads, starting with acquiring packets all the way to decoding embedded PowerShell commands.
https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Hunting%20for%20SharePoint%20In-Memory%20ToolShell%20Payloads/32524
Android Security Bulletin December 2025
Google fixed numerous vulnerabilities with its December Android update. Two of these vulnerabilities are already being exploited.
https://source.android.com/docs/security/bulletin/2025-12-01
4.3 Million Browsers Infected: Inside ShadyPanda's 7-Year Malware Campaign
A group or individual released several browser extensions that worked fine for years until an update injected malicious code into the extension
https://www.koi.ai/blog/4-million-browsers-infected-inside-shadypanda-7-year-malware-campaign
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SANS Stormcast Monday, December 1st, 2025: More ClickFix; Teams Guest Access; Geoserver XXE Vulnerablity
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
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SANS Stormcast Wednesday, November 26th, 2025: Attacks Against Messaging; Passwords in Random Websites; Fluentbit Vuln; #thanksgiving
Spyware Allows Cyber Threat Actors to Target Users of Messaging Applications
Spyware attacks messaging applications in part by triggering vulnerabilities in messaging applications but also by deploying tools like keystroke loggers and screenshot applications.
https://www.cisa.gov/news-events/alerts/2025/11/24/spyware-allows-cyber-threat-actors-target-users-messaging-applications
Stop Putting Your Passwords Into Random Websites Yes. Just Stop!
https://labs.watchtowr.com/stop-putting-your-passwords-into-random-websites-yes-seriously-you-are-the-problem/
Fluentbit Vulnerability
https://www.oligo.security/blog/critical-vulnerabilities-in-fluent-bit-expose-cloud-environments-to-remote-takeover
Happy Thanksgiving. Next podcast on Monday after Thanksgiving.
Über SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)
A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .