CVE-2004-1959: blocker_query.php in Protector System 1.15b1 for PHP-Nuke allows remote attackers to gain sensitive informatio

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MEDIUM 5.0DOWNGRADE

CVE-2004-1959 is a medium-severity flaw (CVSS 5.0) affecting protector system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

blocker_query.php in Protector System 1.15b1 for PHP-Nuke allows remote attackers to gain sensitive information via a string in the portNum parameter, which reveals the full path in an error message.

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	1.6% (top 25%)
CISA exploited list	No
Published	2004-04-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: protector system

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

Am I affected?

Timeline

2004-04-23 04:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

protector system protector system DOWNGRADE

Affected: 1.15b1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.15b1

1. Check installed version

apt-cache policy protector-system || rpm -q protector-system || protector-system --version

2. No fixed release: DOWNGRADE to a release before 1.15b1 (Debian / Ubuntu)

apt-cache madison protector-system sudo apt install protector-system=<VERSION_BEFORE_1.15b1> sudo apt-mark hold protector-system

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

dnf --showduplicates list protector-system sudo dnf downgrade protector-system-<VERSION_BEFORE_1.15b1> sudo dnf versionlock add protector-system

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-2004-1959?

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

Is CVE-2004-1959 being exploited?

CVE-2004-1959 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-2004-1959 affect?

CVE-2004-1959 affects protector system. Severity is medium (CVSS 5.0). blocker_query.php in Protector System 1.15b1 for PHP-Nuke allows remote attackers to gain sensitive information via a string in the portNum parameter, which reveals the full path in an error message.

How urgent is CVE-2004-1959?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2004-1962 HIGH 7.5 DOWNGRADE SQL injection vulnerability in index.php in Protector System 1.15b1 allows remote attackers to bypass SQL inje
CVE-2004-1961 HIGH 7.5 DOWNGRADE blocker.php in Protector System 1.15b1 allows remote attackers to bypass SQL injection protection and execute
CVE-2004-1960 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in blocker_query.php in Protector System 1.15b1 allows remote attacke

References

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