Highlights
Cross-Site Scripting (XSS): 1 prior fix. Scrutinize any change in this area.
tabulate.py: most-fixed (1 issue). Treat as high-risk during review.
0 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Cross-Site Scripting (XSS): Inadequate escaping of cell content during HTML table generation allowed arbitrary HTML and JavaScript injection via malicious cell values. Developers must ensure that all output writers serialize cell content safely using appropriate context-aware encoding.