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CVE-2002-1533

Cross-site scripting (XSS) vulnerability in Jetty JSP servlet engine allows remote attackers to insert arbitrary HTML or script via an HTTP request to a .jsp file whose name contains…

Published
Mar 31, 2003
Updated
Jun 16, 2026
Affected
0 pkgs
Patched
None yet
Exploits
3 known

EPSS Exploitation Probability

via FIRST.org ↗
2.4%probability of exploitation in next 30 days
Lower Risk82th percentile-2.78%
1.57%3.06%4.54%6.02%5.2%2.4%Dec 25Apr 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Cross-site scripting (XSS) vulnerability in Jetty JSP servlet engine allows remote attackers to insert arbitrary HTML or script via an HTTP request to a .jsp file whose name contains the malicious script and some encoded linefeed characters (%0a).

Affected Products

1 product · 1 configurations
Application
jettyjetty
1 version
4.1.0_rc4
Exploits & PoCs
3

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-21875webappsjsp✓ Verified

Jetty 4.1 Servlet Engine - Cross-Site Scripting

by Skinnay · Sep 28, 2002

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every jetty jetty deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

  2. Remediation status

    No patch has shipped for CVE-2002-1533 yet — track the jetty jetty advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

  4. How O3 protects you

    O3 detects and blocks CVE-2002-1533 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2002-1533. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Cross-site scripting (XSS) vulnerability in Jetty JSP servlet engine allows remote attackers to insert arbitrary HTML or script via an HTTP request to a .jsp file whose name contains the malicious script and some encoded linefeed characters (%0a).
O3 Security · Runtime Protection

Is CVE-2002-1533 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2002-1533 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.