CVE-2002-1533: Cross-site scripting (XSS) vulnerability in Jetty JSP servlet engine allows remote attackers to insert arbitra

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MEDIUM 5.8DOWNGRADE

CVE-2002-1533 is a medium-severity flaw (CVSS 5.8) affecting jetty. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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).

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.8 (Medium)
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Published	2003-03-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: jetty

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2003-03-31 05:00 UTCPublished CVE record published
2026-06-16 21:59 UTCUpdated Record last modified

jetty jetty DOWNGRADE

Affected: 4.1.0_rc4

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.1.0_rc4

1. Check installed version

apt-cache policy jetty || rpm -q jetty || jetty --version

2. No fixed release: DOWNGRADE to a release before 4.1.0_rc4 (Debian / Ubuntu)

apt-cache madison jetty sudo apt install jetty=<VERSION_BEFORE_4.1.0_rc4> sudo apt-mark hold jetty

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jetty sudo dnf downgrade jetty-<VERSION_BEFORE_4.1.0_rc4> sudo dnf versionlock add jetty

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Jetty 4.1 Servlet Engine - Cross-Site Scripting

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2002-1533?

jetty: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-1533 being exploited?

CVE-2002-1533 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2002-1533 affect?

CVE-2002-1533 affects jetty. Severity is medium (CVSS 5.8). 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

How urgent is CVE-2002-1533?

Priority 46/100. Public exploit reference

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References

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