Highlights
Cross-Site Scripting: 10 prior fixes. Scrutinize any change in this area.
program/lib/Roundcube/rcube_utils.php: most-fixed (11 issues). Treat as high-risk during review.
33 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.
SSRF: 8 historical fix(es) link program/lib/Roundcube/rcube_utils.php to SSRF.
Content Security Policy Bypass: 3 historical fix(es) link program/lib/Roundcube/rcube_washtml.php to Content Security Policy Bypass.
Cross-Site Scripting: 2 historical fix(es) link program/lib/Roundcube/rcube_utils.php to Cross-Site Scripting.