December “In the Trend of VM” (#22): vulnerabilities in Windows, the expr-eval library, Control Web Panel, and Django. A traditional monthly roundup of trending vulnerabilities – this time, a fairly compact one. 💽
🗞 Post on Habr (rus)
🗞 Post on SecurityLab (rus)
🗒 Digest on the PT website (rus)
Four vulnerabilities in total:
🔻 EoP – Windows Kernel (CVE-2025-62215)
🔻 RCE – expr-eval (CVE-2025-12735)
🔻 RCE – Control Web Panel (CVE-2025-48703)
🔻 SQLi – Django (CVE-2025-64459)
About Remote Code Execution – expr-eval (CVE-2025-12735) vulnerability. expr-eval is a JavaScript library for parsing and evaluating mathematical expressions, providing safe handling of user-supplied variables. It is used in online calculators, educational programs, modeling tools, financial applications, AI systems, and natural language processing (NLP). Insufficient input validation may allow arbitrary JavaScript code execution in the application’s context.
🛠 The vulnerability was discovered on November 5. A PoC has been on GitHub since November 11.
⚙️ The vulnerability is still in the process of being fixed in the main (effectively abandoned 🤷♂️) expr-eval project and is not fully fixed in its fork, expr-eval-fork. Secure versions are expected to appear in the corresponding GHSA.
🌐 The library is popular: expr-eval has 800k weekly downloads on npm, and expr-eval-fork has 88k.
👾 No in-the-wild exploitation has been observed so far.
Malicious Open Source: the cost of using someone else’s code. Hello everyone! This video was recorded for the VMconf 22 Vulnerability Management conference, vmconf.pw. I will be talking about malicious open source and the cost of using someone else’s code.
Alternative video link (for Russia): https://vk.com/video-149273431_456239086
Video in Russian from CISO Forum 2022: https://youtu.be/LPXg-MEamVA
To be honest, at the beginning of the year I did not plan to talk about these things. But life changes rapidly and unpredictably, so it becomes impossible not to talk about this.
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