Security context

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

symfony/dom-crawler

              8.2 @ 77ca351
            

Fixes

CVEs

HIGH

Peak severity

Highlights

SSRF: 1 prior fix. Scrutinize any change in this area.

Crawler.php: most-fixed (2 issues). Treat as high-risk during review.

1 high-severity fix in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

XXE: Insecure DOMDocument configuration historically allowed XML External Entity (XXE) exploitation via enabled validation properties, potentially exposing internal system files.

SSRF: XML parsing without disabling network access allowed external entities to resolve remote URIs, causing Server-Side Request Forgery (SSRF) when handling untrusted documents.