CVE-2005-4159

CVE-2005-4159 is a high-severity vulnerability in Simple Machines Simple Machines Forum 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

Description

NOTE: this issue has been disputed by the vendor and third parties. SQL injection vulnerability in Memberlist.php in Simple Machines Forum (SMF) 1.1 rc1 and earlier allows remote attackers to execute arbitrary SQL commands via the start parameter. NOTE: the vendor says that since only one character can be modified, there is no SQL injection. Thus this might be an "invalid SQL syntax error." Multiple followups support the vendor

Frequently asked questions

What is CVE-2005-4159?
NOTE: this issue has been disputed by the vendor and third parties. SQL injection vulnerability in Memberlist.php in Simple Machines Forum (SMF) 1.1 rc1 and earlier allows remote attackers to execute arbitrary SQL commands via the start parameter. NOTE: the vendor says that since only one character can be modified, there is no SQL injection. Thus this might be an "invalid SQL syntax error." Multiple followups support the vendor
How severe is CVE-2005-4159?
CVE-2005-4159 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-4159 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-4159?
CVE-2005-4159 affects Simple Machines Simple Machines Forum. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-4159?
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-2005-4159 published?
CVE-2005-4159 was published on 2005-12-11 and last updated on 2026-06-16.

References

Affected products (1)

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