CVE-2003-0769: Cross-site scripting (XSS) vulnerability in the ICQ Web Front guestbook (guestbook.html) allows remote attacke

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MEDIUM 4.3DOWNGRADE

CVE-2003-0769 is a medium-severity flaw (CVSS 4.3) affecting icq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the ICQ Web Front guestbook (guestbook.html) allows remote attackers to insert arbitrary web script and HTML via the message field.

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	3.7% (top 10%)
CISA exploited list	No
Published	2003-09-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mirabilis

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

Am I affected?

Timeline

2003-09-22 04:00 UTCPublished CVE record published
2026-06-16 22:02 UTCUpdated Record last modified

mirabilis icq DOWNGRADE

Affected: 2003a_build3777 · 2003a_build3799 · 2003a_build3800

Fixed in: no fixed release known

Safe to downgrade to: a release before 2003a_build3777

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2003a_build3777 (Debian / Ubuntu)

apt-cache madison icq sudo apt install icq=<VERSION_BEFORE_2003a_build3777> sudo apt-mark hold icq

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

dnf --showduplicates list icq sudo dnf downgrade icq-<VERSION_BEFORE_2003a_build3777> sudo dnf versionlock add icq

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: ICQ 2003 - Webfront Guestbook 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-2003-0769?

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

Is CVE-2003-0769 being exploited?

CVE-2003-0769 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-2003-0769 affect?

CVE-2003-0769 affects icq. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in the ICQ Web Front guestbook (guestbook.html) allows remote attackers to insert arbitrary web script and HTML via the message field.

How urgent is CVE-2003-0769?

Priority 43/100. Public exploit reference

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References

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