Listen to this Post
The vulnerability exists within the `PNGImageEncoder` class of the Batik Codec FIX module (plugins/svg-plugin/batik-codec-fix). The code fails to properly sanitize or validate input used in reflection or dynamic code loading constructs. An attacker can craft malicious input parameters, such as those controlling encoder behavior or embedded script paths, which are then passed to vulnerable methods. These parameters are unsafely incorporated into the generation of runtime instructions. This could involve the use of `Class.forName()` with attacker-controlled strings, unsafe deserialization of encoder settings, or the evaluation of injected expressions within the PNG processing pipeline. By supplying a specially crafted payload, the attacker can break out of intended data contexts and force the application to execute arbitrary Java code within the context of the application server, leading to full system compromise.
DailyCVE:
Platform: Quick-Media
Version: <= 3.0.0
Vulnerability: Code Injection
Severity: Moderate
Date: 2026-01-27
Prediction: Patch available e52fcee
What Undercode Say:
Check if your version is affected
pom_path="path/to/pom.xml"
grep -A2 -B2 "quick-media" "$pom_path" | grep "version"
Apply the patched commit
cd /project/path
git fetch origin
git checkout e52fcee
Verify the fix in PNGImageEncoder.java
find . -name "PNGImageEncoder.java" -type f -exec grep -l "forName|getDeclaredMethod" {} \;
How Exploit:
// Malicious parameter payload
encoderParams.put("codecClass", "com.attacker.Exploit");
// Triggers Class.forName(attackerString) in vulnerable code
Protection from this CVE
- Immediately update to commit
e52fcee. - Implement strict allow-list validation for all dynamic class loading inputs.
- Sanitize all parameters passed to Batik encoder modules.
Impact:
Arbitrary Code Execution
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
