CVE-2007-1421: Multiple PHP remote file inclusion vulnerabilities in Premod SubDog 2 allow remote attackers to execute arbitr

This week

HIGH 10.0DOWNGRADE

CVE-2007-1421 is a high-severity flaw (CVSS 10.0) affecting premod subdog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple PHP remote file inclusion vulnerabilities in Premod SubDog 2 allow remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter to (1) functions_kb.php, (2) themen_portal_mitte.php, or (3) logger_engine.php in includes/.

Why this priority

Critical severity
EPSS top 4%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	11.5% (top 4%)
CISA exploited list	No
Published	2007-03-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: premod subdog

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

Am I affected?

Timeline

2007-03-13 01:19 UTCPublished CVE record published
2026-06-16 22:37 UTCUpdated Record last modified

premod subdog premod subdog DOWNGRADE

Affected: 2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2

1. Check installed version

apt-cache policy premod-subdog || rpm -q premod-subdog || premod-subdog --version

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

apt-cache madison premod-subdog sudo apt install premod-subdog=<VERSION_BEFORE_2> sudo apt-mark hold premod-subdog

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

dnf --showduplicates list premod-subdog sudo dnf downgrade premod-subdog-<VERSION_BEFORE_2> sudo dnf versionlock add premod-subdog

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: Premod SubDog 2 - '/includes/functions_kb.php?phpbb_root_path' Remote File Inclusion
Exploit-DB: Premod SubDog 2 - '/includes/logger_engine.php?phpbb_root_path' Remote File Inclusion
Exploit-DB: Premod SubDog 2 - '/includes/themen_portal_mitte.php?phpbb_root_path' Remote File Inclusion

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-2007-1421?

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

Is CVE-2007-1421 being exploited?

CVE-2007-1421 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-2007-1421 affect?

CVE-2007-1421 affects premod subdog. Severity is high (CVSS 10.0). Multiple PHP remote file inclusion vulnerabilities in Premod SubDog 2 allow remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter to (1) functions_kb.php, (2) themen_portal_mitte.php, or (3) logger_engine

How urgent is CVE-2007-1421?

Priority 64/100. Critical severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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