CVE-2004-1581: BlackBoard 1.5.1 allows remote attackers to gain sensitive information via a direct request to (1) checkdb.inc

Routine

MEDIUM 5.0DOWNGRADE

CVE-2004-1581 is a medium-severity flaw (CVSS 5.0) affecting blackboard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

BlackBoard 1.5.1 allows remote attackers to gain sensitive information via a direct request to (1) checkdb.inc.php, (2) admin.inc.php or (3) cp.inc.php, which reveals the path in a PHP error message.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: blackboard

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:07 UTCUpdated Record last modified

blackboard blackboard DOWNGRADE

Affected: 1.5.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5.1 (Debian / Ubuntu)

apt-cache madison blackboard sudo apt install blackboard=<VERSION_BEFORE_1.5.1> sudo apt-mark hold blackboard

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

dnf --showduplicates list blackboard sudo dnf downgrade blackboard-<VERSION_BEFORE_1.5.1> sudo dnf versionlock add blackboard

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-2004-1581?

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

Is CVE-2004-1581 being exploited?

CVE-2004-1581 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-2004-1581 affect?

CVE-2004-1581 affects blackboard. Severity is medium (CVSS 5.0). BlackBoard 1.5.1 allows remote attackers to gain sensitive information via a direct request to (1) checkdb.inc.php, (2) admin.inc.php or (3) cp.inc.php, which reveals the path in a PHP error message.

How urgent is CVE-2004-1581?

Priority 34/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

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References

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