Security context

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

jgarber/redcloth

              master @ e2bd03c
            

Fixes

CVEs

HIGH

Peak severity

0.0%

Coverage

Highlights

Cross-Site Scripting (XSS): 3 prior fixes. Scrutinize any change in this area.

lib/redcloth/formatters/html.rb: most-fixed (3 issues). 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): Attackers can bypass link and image sanitization filters using mixed-case URI schemes or alternative payload structures when HTML filtering options are active, allowing arbitrary script execution.

Regular Expression Denial of Service (ReDoS): The `sanitize_html` function utilizes complex regular expressions that are vulnerable to catastrophic backtracking when parsing specially crafted user input, leading to denial of service.