Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

pd4d10/hashmd

              main @ a93879c
            

Fixes

CVEs

HIGH

Peak severity

Highlights

Cross-Site Scripting (XSS): 2 prior fixes. Scrutinize any change in this area.

packages/bytemd/src/utils.ts: most-fixed (2 issues). Treat as high-risk during review.

2 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): Mutating a shared global HTML sanitization schema allowed bypasses across instances, leading to persistent or reflected XSS depending on how the Markdown parser is utilized.

Cross-Site Scripting (XSS): Running AST-modifying plugins after or independent of the sanitization step allowed custom plugin transformers to introduce raw, unescaped HTML elements that bypass the processor sanitization step.