How severe is CVE-2011-1130?

CVE-2011-1130 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-1130 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1130?

CVE-2011-1130 primarily affects Simplemachines Smf. In total, 57 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1130?

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-2011-1130 published?

CVE-2011-1130 was published on 2011-06-21 and last updated on 2026-06-16.

CVE-2011-1130

CVE-2011-1130 is a high-severity vulnerability in Simplemachines Smf 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Simplemachines Smf
Published: 2011-06-21
Last modified: 2026-06-16

Description

Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, does not properly validate the start parameter, which might allow remote attackers to conduct SQL injection attacks, obtain sensitive information, or cause a denial of service via a crafted value, related to the cleanRequest function in QueryString.php and the constructPageIndex function in Subs.php.

Frequently asked questions

What is CVE-2011-1130?: Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, does not properly validate the start parameter, which might allow remote attackers to conduct SQL injection attacks, obtain sensitive information, or cause a denial of service via a crafted value, related to the cleanRequest function in QueryString.php and the constructPageIndex function in Subs.php.
How severe is CVE-2011-1130?: CVE-2011-1130 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-1130 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1130?: CVE-2011-1130 primarily affects Simplemachines Smf. In total, 57 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1130?: 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-2011-1130 published?: CVE-2011-1130 was published on 2011-06-21 and last updated on 2026-06-16.

References

Affected products (57)

cpe:2.3:a:simplemachines:smf:*:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0:beta4:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0:beta4.1:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0:beta5:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0:beta6:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0:rc2:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.9:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.10:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.12:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.13:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.14:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.15:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.16:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.17:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.18:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.19:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.20:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.0.21:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:beta1:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:beta2:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:beta3:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:beta4:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:rc1:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:rc2:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1:rc3:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:simplemachines:smf:1.1.4:*:*:*:*:*:*:*

More vulnerabilities in Simplemachines Smf

CVE-2011-1127 — Critical (CVSS 10.0): SSI.php in Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, does not properly restrict guest access,…
CVE-2011-3615 — High (CVSS 7.5): Multiple SQL injection vulnerabilities in Simple Machines Forum (SMF) before 1.1.15 and 2.x before 2.0.1 allow remote…
CVE-2011-1128 — High (CVSS 7.5): The loadUserSettings function in Load.php in Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, does…
CVE-2008-6971 — High (CVSS 7.5): The password reset functionality in Simple Machines Forum (SMF) 1.0.x before 1.0.14, 1.1.x before 1.1.6, and 2.0 before…
CVE-2011-4173 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in Simple Machines Forum (SMF) 2.x before 2.0.1 allows remote attackers…
CVE-2006-4564 — Medium (CVSS 5.1): SQL injection vulnerability in Sources/ManageBoards.php in Simple Machines Forum 1.1 RC3 allows remote attackers to…

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