CVE-2003-1541: PlanetMoon Guestbook tr3.a stores sensitive information under the web root with insufficient access control, w

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MEDIUM 5.0DOWNGRADE

CVE-2003-1541 is a medium-severity flaw (CVSS 5.0) affecting guestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PlanetMoon Guestbook tr3.a stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain the admin script password, and other passwords, via a direct request to files/passwd.txt.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Weakness	CWE-264
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: planetmoon

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

planetmoon guestbook DOWNGRADE

Affected: tr3.a.1

Fixed in: no fixed release known

Safe to downgrade to: a release before tr3.a.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before tr3.a.1 (Debian / Ubuntu)

apt-cache madison guestbook sudo apt install guestbook=<VERSION_BEFORE_tr3.a.1> sudo apt-mark hold guestbook

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

dnf --showduplicates list guestbook sudo dnf downgrade guestbook-<VERSION_BEFORE_tr3.a.1> sudo dnf versionlock add guestbook

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: Planetmoon - Guestbook Clear Text Password Retrieval

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-2003-1541?

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

Is CVE-2003-1541 being exploited?

CVE-2003-1541 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-2003-1541 affect?

CVE-2003-1541 affects guestbook. Severity is medium (CVSS 5.0). PlanetMoon Guestbook tr3.a stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain the admin script password, and other passwords, via a direct request to files/passwd.txt.

How urgent is CVE-2003-1541?

Priority 44/100. Public exploit reference

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References

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