CMS Made Simple 2.2.15 Stored XSS via SVG File Upload
Published May 16, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
CMS Made Simple 2.2.15 Stored XSS via SVG File Upload
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
CMS Made Simple 2.2.15 contains a stored cross-site scripting vulnerability that allows authenticated users with Content Manager access to inject malicious scripts through SVG file uploads. Attackers can upload SVG files containing embedded JavaScript to the file manager, which executes when other authenticated users access the uploaded file, enabling cookie theft and session hijacking.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- ExploitDB-49199 ↗
- Official Product Homepage ↗
- Product Reference ↗
- VulnCheck Advisory: CMS Made Simple 2.2.15 Stored XSS via SVG File Upload ↗
Record history
Published May 16, 2026 · Last refreshed Nov 3, 2026