CVE-2004-2374: BadBlue 2.4 allows remote attackers to obtain the location of the server installation path via a request for p

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MEDIUM 5.0DOWNGRADE

CVE-2004-2374 is a medium-severity flaw (CVSS 5.0) affecting badblue. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

BadBlue 2.4 allows remote attackers to obtain the location of the server installation path via a request for phptest.php, which includes the pathname in the source of the resulting HTML.

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	2.8% (top 13%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: working resources inc.

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 22:09 UTCUpdated Record last modified

working resources inc. badblue DOWNGRADE

Affected: 2.40

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.40

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.40 (Debian / Ubuntu)

apt-cache madison badblue sudo apt install badblue=<VERSION_BEFORE_2.40> sudo apt-mark hold badblue

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

dnf --showduplicates list badblue sudo dnf downgrade badblue-<VERSION_BEFORE_2.40> sudo dnf versionlock add badblue

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: Working Resources BadBlue Server 2.40 - 'PHPtest.php' Full Path 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-2004-2374?

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

Is CVE-2004-2374 being exploited?

CVE-2004-2374 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-2004-2374 affect?

CVE-2004-2374 affects badblue. Severity is medium (CVSS 5.0). BadBlue 2.4 allows remote attackers to obtain the location of the server installation path via a request for phptest.php, which includes the pathname in the source of the resulting HTML.

How urgent is CVE-2004-2374?

Priority 44/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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