Highlights
Stored XSS: 5 prior fixes. Scrutinize any change in this area.
application/common/model/Collect.php: most-fixed (4 issues). Treat as high-risk during review.
18 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.
Path Traversal: Arbitrary file deletion via unlink() with user-controlled paths was fixed twice, indicating a recurring weakness in file deletion operations.
Stored XSS: Multiple fixes across content models and the collection module show persistent failure to sanitize user/external-provided data before storage, leading to stored XSS.
SSRF: SSRF was fixed in three distinct components (collection, push notifications, template market), showing a systemic lack of URL validation across outbound HTTP requests.