CVE-2002-2378: Cross-site scripting (XSS) vulnerability in AN HTTP 1.41d allows remote attackers to inject arbitrary web scri

Routine

MEDIUM 4.3DOWNGRADE

CVE-2002-2378 is a medium-severity flaw (CVSS 4.3) affecting an httpd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in AN HTTP 1.41d allows remote attackers to inject arbitrary web script or HTML via a colon (:) in the query string, which is inserted into the resulting error page.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-79
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: nakata

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:01 UTCUpdated Record last modified

nakata an httpd DOWNGRADE

Affected: 1.41d

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.41d

1. Check installed version

apt-cache policy an-httpd || rpm -q an-httpd || an-httpd --version

2. No fixed release: DOWNGRADE to a release before 1.41d (Debian / Ubuntu)

apt-cache madison an-httpd sudo apt install an-httpd=<VERSION_BEFORE_1.41d> sudo apt-mark hold an-httpd

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

dnf --showduplicates list an-httpd sudo dnf downgrade an-httpd-<VERSION_BEFORE_1.41d> sudo dnf versionlock add an-httpd

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.

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-2002-2378?

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

Is CVE-2002-2378 being exploited?

CVE-2002-2378 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-2002-2378 affect?

CVE-2002-2378 affects an httpd. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in AN HTTP 1.41d allows remote attackers to inject arbitrary web script or HTML via a colon (:) in the query string, which is inserted into the resulting error page.

How urgent is CVE-2002-2378?

Priority 31/100. No elevated risk signals yet.

Software pages

Apache HTTP Server vulnerabilities

References

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