CVE-2003-1556: Cross-site scripting (XSS) vulnerability in cc_guestbook.pl in CGI City CC GuestBook allows remote attackers t

Routine

MEDIUM 4.3MITIGATE

CVE-2003-1556 is a medium-severity flaw (CVSS 4.3) affecting cc guestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in cc_guestbook.pl in CGI City CC GuestBook allows remote attackers to inject arbitrary web script or HTML via the (1) name and (2) homepage_title (webpage title) parameters.

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	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: cgi city

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

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:04 UTCUpdated Record last modified

cgi city cc guestbook MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cc-guestbook || rpm -q cc-guestbook || cc-guestbook --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2003-1556?

cc guestbook: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-1556 being exploited?

CVE-2003-1556 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-2003-1556 affect?

CVE-2003-1556 affects cc guestbook. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in cc_guestbook.pl in CGI City CC GuestBook allows remote attackers to inject arbitrary web script or HTML via the (1) name and (2) homepage_title (webpage title) parameters.

How urgent is CVE-2003-1556?

Priority 34/100. No elevated risk signals yet.

References

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