Consider updating MathJax to >=3 to avoid CVE-2023-39663

[delsner]

Description

Currently, nbclassic includes MathJax <=2.7.9. Any version <=3 of MathJax is vulnerable to a potential ReDoS attack (CVE-2023-39663, issue). While the vulnerability is not easily exploitable, it does pop up as a high severity CVE finding when scanning any environment that includes nbclassic.

Reproduce

Use a CVE scanner (e.g., grype) to scan an environment that includes nbclassic.

Expected behavior

No CVE findings for the most up-to-date version of nbclassic.

Context

• Operating System and version: macOS (15.5)
• Jupyter NbClassic version: 1.3.1

[RRosio]

Thank you for reporting @delsner, we are currently in the process of moving dependencies to npm, once that is done we will start looking at updating these older dependencies