How severe is CVE-2006-4078?

CVE-2006-4078 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-4078 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4078?

CVE-2006-4078 affects Deluxebb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-4078?

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-2006-4078 published?

CVE-2006-4078 was published on 2006-08-11 and last updated on 2026-06-16.

CVE-2006-4078

CVE-2006-4078 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.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Deluxebb
Published: 2006-08-11
Last modified: 2026-06-16

Description

pm.php (aka the PM system) in DeluxeBB 1.08, and possibly earlier, allows remote attackers to bypass authentication by providing an arbitrary username in the membercookie cookie parameter.

Frequently asked questions

What is CVE-2006-4078?: pm.php (aka the PM system) in DeluxeBB 1.08, and possibly earlier, allows remote attackers to bypass authentication by providing an arbitrary username in the membercookie cookie parameter.
How severe is CVE-2006-4078?: CVE-2006-4078 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-4078 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4078?: CVE-2006-4078 affects Deluxebb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4078?: 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-2006-4078 published?: CVE-2006-4078 was published on 2006-08-11 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:deluxebb:deluxebb:1.08:*:*:*:*:*:*:*

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