[Security Triage] XSS Test Triage Report — 2026-03-25

[devin-ai-integration]

[Security Triage] XSS Test Triage Report — 2026-03-25

This report summarizes the test triage of 5 cross-site scripting (XSS) related CodeQL alerts for colin-d-fried/demo-python.

Summary

Metric	Count
Total XSS alerts reviewed	5
fix	5
false-positive	0

Severity Breakdown

Severity	Count	Priority Tier
Critical	1	Fast-track
Medium	4	Batched

Fast-track findings: 1
Batched findings: 4

CWE Breakdown

CWE	Description	Alert Count
CWE-074	Improper Neutralization of Special Elements (Injection)	1
CWE-079	Cross-site Scripting (XSS)	4
CWE-116	Improper Encoding or Escaping of Output	4

PRs Created

Alert	Severity	Tier	File	PR	Tracking Issue	Board Status
#37	CRITICAL	fast-track	vulnerable_xss.py	PR #57	#39	In Review
#38	MEDIUM	batched	vulnerable_deserialization.py	PR #58	#40	In Review
#41	MEDIUM	batched	vulnerable_ssrf.py	PR #59	#43	In Review
#44	MEDIUM	batched	vulnerable_xss.py	PR #60	#46	In Review
#50	MEDIUM	batched	vulnerable_xxe.py	PR #61	#52	In Review

Fix Approach

All 5 fixes use markupsafe.escape() to sanitize user-controlled output before returning it in HTTP responses:

• Alert [CodeQL #35] Deserialization of user-controlled data #37 (template injection): Replaced f-string interpolation in render_template_string() with Jinja2 context variable {{ query }}, which auto-escapes
• Alerts [CodeQL #36] Deserialization of user-controlled data #38, [CodeQL #39] Reflected server-side cross-site scripting #41, [CodeQL #42] Reflected server-side cross-site scripting #44, [CodeQL #48] Reflected server-side cross-site scripting #50 (reflected XSS): Wrapped return values with escape() to neutralize HTML/JS in reflected content

Projects Board

All 5 tracking issues are on the Security Issue Tracker with status In Review, awaiting human review and merge.

---

Generated by automated security triage on 2026-03-25.