CVE-2025-13415
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts via SVG file uploads in EasyImages versions up to 2.8.6. When users view manipulated SVG images, the scripts execute in their browsers, potentially stealing session cookies or performing actions on their behalf. This affects all installations using the vulnerable SVG Image Handler component.
💻 Affected Systems
- icret EasyImages
📦 What is this software?
Easyimages2.0 by Easyimages2.0 Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, take over the EasyImages installation, and use it as a foothold to attack other systems in the network.
Likely Case
Attackers inject malicious scripts that steal user session cookies or redirect users to phishing sites when they view manipulated SVG images.
If Mitigated
With proper input validation and output encoding, the XSS payloads would be neutralized, preventing script execution.
🎯 Exploit Status
The vulnerability is in a public upload endpoint and requires only SVG file manipulation, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.8.7 or later
Vendor Advisory: https://github.com/icret/EasyImages2.0/issues/260
Restart Required: No
Instructions:
1. Backup your current installation. 2. Download the latest version from the official repository. 3. Replace the vulnerable files, particularly /app/upload.php. 4. Verify the fix by testing SVG upload functionality.
🔧 Temporary Workarounds
Disable SVG uploads
allTemporarily disable SVG file uploads in the EasyImages configuration to prevent exploitation.
Edit configuration to restrict allowed file types to exclude SVG
Implement WAF rules
allAdd web application firewall rules to block malicious SVG content patterns.
Add WAF rule to detect and block SVG files containing script tags or javascript URIs
🧯 If You Can't Patch
- Implement strict Content Security Policy headers to prevent script execution from untrusted sources.
- Monitor and audit all SVG file uploads for suspicious content patterns.
🔍 How to Verify
Check if Vulnerable:
Check if your EasyImages version is 2.8.6 or earlier and if SVG upload functionality is enabled.Check Version:
Check the version in the EasyImages admin panel or configuration files.Verify Fix Applied:
After patching, attempt to upload an SVG file containing script tags and verify they are properly sanitized or rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual SVG file uploads, especially with script tags or javascript URIs in the content
Network Indicators:
- HTTP POST requests to /app/upload.php with SVG content containing script patterns
SIEM Query:
source="web_server" AND uri="/app/upload.php" AND file_type="svg" AND (content CONTAINS "<script>" OR content CONTAINS "javascript:")