CVE-2003-1516

Java Plug-in 1.4.2_01 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2003-1516. PoCs published by Marc Schoenefeld.

AI-analyzed exploit summary This exploit demonstrates a Java sandbox security model violation where applets from different domains can share read/write access to a static variable, allowing unsigned applets to access or modify data from signed applets. The PoC includes two applets (ReadApplet and WriteApplet) that manipulate the same static variable in the Xalan library.

Description

The org.apache.xalan.processor.XSLProcessorVersion class in Java Plug-in 1.4.2_01 allows signed and unsigned applets to share variables, which violates the Java security model and could allow remote attackers to read or write data belonging to a signed applet.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Marc Schoenefeld · textremotewindows
https://www.exploit-db.com/exploits/23265

This exploit demonstrates a Java sandbox security model violation where applets from different domains can share read/write access to a static variable, allowing unsigned applets to access or modify data from signed applets. The PoC includes two applets (ReadApplet and WriteApplet) that manipulate the same static variable in the Xalan library.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Java Plug-in 1.4.2_01 (and potentially other versions)
No auth needed
Prerequisites: Victim must visit a malicious webpage hosting the applets · Java Plug-in must be installed and enabled in the browser
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/341815
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/8857

Scores

EPSS 0.0426
EPSS Percentile 89.8%

Details

Status published
Products (1)
sun/java_plug-in 1.4.2_01
Published Dec 31, 2003
Tracked Since Feb 18, 2026