CVE-2007-2742: Unrestricted file upload vulnerability in labs.beffa.org w2box 4.0.0 Beta4 allows remote attackers to upload a

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HIGH 7.5DOWNGRADE

CVE-2007-2742 is a high-severity flaw (CVSS 7.5) affecting w2box. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in labs.beffa.org w2box 4.0.0 Beta4 allows remote attackers to upload arbitrary PHP code via a filename with a double extension such as .php.jpg.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2007-05-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: labs.beffa.org

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

Am I affected?

Timeline

2007-05-17 19:30 UTCPublished CVE record published
2026-06-16 22:40 UTCUpdated Record last modified

labs.beffa.org w2box DOWNGRADE

Affected: 4.0.0_beta4

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.0_beta4

1. Check installed version

apt-cache policy w2box || rpm -q w2box || w2box --version

2. No fixed release: DOWNGRADE to a release before 4.0.0_beta4 (Debian / Ubuntu)

apt-cache madison w2box sudo apt install w2box=<VERSION_BEFORE_4.0.0_beta4> sudo apt-mark hold w2box

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

dnf --showduplicates list w2box sudo dnf downgrade w2box-<VERSION_BEFORE_4.0.0_beta4> sudo dnf versionlock add w2box

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-2007-2742?

w2box: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-2742 being exploited?

CVE-2007-2742 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-2007-2742 affect?

CVE-2007-2742 affects w2box. Severity is high (CVSS 7.5). Unrestricted file upload vulnerability in labs.beffa.org w2box 4.0.0 Beta4 allows remote attackers to upload arbitrary PHP code via a filename with a double extension such as .php.jpg.

How urgent is CVE-2007-2742?

Priority 50/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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