CVE-2007-1552: Unrestricted file upload vulnerability in usercp.php in MetaForum 0.513 Beta restricts file types based on the

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HIGH 7.5DOWNGRADE

CVE-2007-1552 is a high-severity flaw (CVSS 7.5) affecting metaforum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in usercp.php in MetaForum 0.513 Beta restricts file types based on the MIME type in the Content-type HTTP header, which allows remote attackers to upload and execute arbitrary scripts via an image MIME type with a filename containing an executable extension such as .php.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.5% (top 7%)
CISA exploited list	No
Published	2007-03-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: metaforum

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

Am I affected?

Timeline

2007-03-20 22:19 UTCPublished CVE record published
2026-06-16 22:37 UTCUpdated Record last modified

metaforum metaforum DOWNGRADE

Affected: 0.513_beta

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.513_beta

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.513_beta (Debian / Ubuntu)

apt-cache madison metaforum sudo apt install metaforum=<VERSION_BEFORE_0.513_beta> sudo apt-mark hold metaforum

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

dnf --showduplicates list metaforum sudo dnf downgrade metaforum-<VERSION_BEFORE_0.513_beta> sudo dnf versionlock add metaforum

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: MetaForum 0.513 Beta - Arbitrary File Upload

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-2007-1552?

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

Is CVE-2007-1552 being exploited?

CVE-2007-1552 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-2007-1552 affect?

CVE-2007-1552 affects metaforum. Severity is high (CVSS 7.5). Unrestricted file upload vulnerability in usercp.php in MetaForum 0.513 Beta restricts file types based on the MIME type in the Content-type HTTP header, which allows remote attackers to upload and execute arbitrary scripts via an image MIM

How urgent is CVE-2007-1552?

Priority 54/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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