CVE-2004-2465: Cross-site scripting (XSS) vulnerability in chat.ghp in Easy Chat Server 1.2 allows remote attackers to inject

Routine

MEDIUM 4.3DOWNGRADE

CVE-2004-2465 is a medium-severity flaw (CVSS 4.3) affecting easy chat server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in chat.ghp in Easy Chat Server 1.2 allows remote attackers to inject arbitrary web script or HTML via the username parameter.

Why this priority

Public exploit reference

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
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: efs software

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:09 UTCUpdated Record last modified

efs software easy chat server DOWNGRADE

Affected: 1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy easy-chat-server || rpm -q easy-chat-server || easy-chat-server --version

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison easy-chat-server sudo apt install easy-chat-server=<VERSION_BEFORE_1.2> sudo apt-mark hold easy-chat-server

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

dnf --showduplicates list easy-chat-server sudo dnf downgrade easy-chat-server-<VERSION_BEFORE_1.2> sudo dnf versionlock add easy-chat-server

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-2004-2465?

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

Is CVE-2004-2465 being exploited?

CVE-2004-2465 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-2004-2465 affect?

CVE-2004-2465 affects easy chat server. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in chat.ghp in Easy Chat Server 1.2 allows remote attackers to inject arbitrary web script or HTML via the username parameter.

How urgent is CVE-2004-2465?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2024-0695 MEDIUM 4.3 DOWNGRADE A vulnerability, which was classified as problematic, has been found in EFS Easy Chat Server 3.1
CVE-2023-4497 MEDIUM 6.1 UPGRADE Easy Chat Server, in its 3.1 version and before, does not sufficiently encrypt user-controlled inputs, resulti
CVE-2023-4496 MEDIUM 6.1 UPGRADE Easy Chat Server, in its 3.1 version and before, does not sufficiently encrypt user-controlled inputs, resulti
CVE-2023-4495 MEDIUM 6.1 UPGRADE Easy Chat Server, in its 3.1 version and before, does not sufficiently encrypt user-controlled inputs, resulti
CVE-2023-4494 CRITICAL 9.8 DOWNGRADE Stack-based buffer overflow vulnerability in Easy Chat Server 3.1 version

References

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