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Vulnerability record · CVE-2011-1127 · published 21 June 2011

CVE-2011-1127: Simplemachines smf permissions and access controls vulnerability

Simplemachines · Smf

SSI.php in Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, does not properly restrict guest access, which allows remote attackers to have an unspecified impact via unknown vectors.

10.0 CVSS 2.0 High EPSS 2.2% · top 18.1% CWE-264 · Permissions and access controls
10.0CVSS 2.0 base score
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

SSI.php in Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, does not properly restrict guest access, which allows remote attackers to have an unspecified impact via unknown vectors.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://custom.simplemachines.org/mods/downloads/smf_patch_2.0-RC4_security.zip Patch
http://www.openwall.com/lists/oss-security/2011/02/22/17 Patch
http://www.openwall.com/lists/oss-security/2011/03/02/4 Patch
http://www.simplemachines.org/community/index.php?topic=421547.0 Patch
http://custom.simplemachines.org/mods/downloads/smf_patch_2.0-RC4_security.zip Patch
http://www.openwall.com/lists/oss-security/2011/02/22/17 Patch
http://www.openwall.com/lists/oss-security/2011/03/02/4 Patch
http://www.simplemachines.org/community/index.php?topic=421547.0 Patch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2011-3615Simplemachines smf sql injection vulnerabilityMultiple SQL injection vulnerabilities in Simple Machines Forum (SMF) before 1.1.15 and 2.x before 2.0.1 allow remote attackers to execute arbitrary …EPSS 1.1%7.5CVE-2011-1128Simplemachines smf vulnerabilityThe loadUserSettings function in Load.php in Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, does not properly handle invalid logi…EPSS 1.6%7.5CVE-2011-1130Simplemachines smf improper input validation vulnerabilitySimple 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…EPSS 1.1%7.5CVE-2008-6971Simplemachines smf vulnerabilityThe 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 2.0 beta 4 includes clues abo…EPSS 7.1%6.8CVE-2011-4173Simplemachines smf cross-site request forgery vulnerabilityCross-site request forgery (CSRF) vulnerability in Simple Machines Forum (SMF) 2.x before 2.0.1 allows remote attackers to hijack the authentication …EPSS 0.59%5.1CVE-2006-4564Simplemachines smf sql injection vulnerabilitySQL injection vulnerability in Sources/ManageBoards.php in Simple Machines Forum 1.1 RC3 allows remote attackers to execute arbitrary SQL commands vi…EPSS 1.1%5.0CVE-2011-1131Simplemachines smf information exposure vulnerabilityThe PlushSearch2 function in Search.php in Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 RC5, uses certain cached data in a situation…EPSS 1.2%3.5CVE-2011-1129Simplemachines smf cross-site scripting vulnerabilityCross-site scripting (XSS) vulnerability in the EditNews function in ManageNews.php in Simple Machines Forum (SMF) before 1.1.13, and 2.x before 2.0 …EPSS 1.00%

Source: NIST National Vulnerability Database (record CVE-2011-1127), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.