CVE-2003-1401: login.php in php-Board 1.0 stores plaintext passwords in $username.txt with insufficient access control under

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MEDIUM 5.8DOWNGRADE

CVE-2003-1401 is a medium-severity flaw (CVSS 5.8) affecting php board. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

login.php in php-Board 1.0 stores plaintext passwords in $username.txt with insufficient access control under the web document root, which allows remote attackers to obtain sensitive information via a direct request.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.8 (Medium)
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-255
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: php board

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

php board php board DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy php-board || rpm -q php-board || php-board --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison php-board sudo apt install php-board=<VERSION_BEFORE_1.0> sudo apt-mark hold php-board

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

dnf --showduplicates list php-board sudo dnf downgrade php-board-<VERSION_BEFORE_1.0> sudo dnf versionlock add php-board

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: PHP-Board 1.0 - User Password Disclosure

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-2003-1401?

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

Is CVE-2003-1401 being exploited?

CVE-2003-1401 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-2003-1401 affect?

CVE-2003-1401 affects php board. Severity is medium (CVSS 5.8). login.php in php-Board 1.0 stores plaintext passwords in $username.txt with insufficient access control under the web document root, which allows remote attackers to obtain sensitive information via a direct request.

How urgent is CVE-2003-1401?

Priority 45/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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