CVE-2006-4558

CVE-2006-4558 is a high-severity vulnerability in Deluxebb with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Description

DeluxeBB 1.06 and earlier, when run on the Apache HTTP Server with the mod_mime module, allows remote attackers to execute arbitrary PHP code by uploading files with double extensions via the fileupload parameter in a newthread action in newpost.php.

Frequently asked questions

What is CVE-2006-4558?
DeluxeBB 1.06 and earlier, when run on the Apache HTTP Server with the mod_mime module, allows remote attackers to execute arbitrary PHP code by uploading files with double extensions via the fileupload parameter in a newthread action in newpost.php.
How severe is CVE-2006-4558?
CVE-2006-4558 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-4558 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4558?
CVE-2006-4558 affects Deluxebb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4558?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-4558 published?
CVE-2006-4558 was published on 2006-09-06 and last updated on 2026-06-16.

References

Affected products (1)

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