SimplemachinesCVEs & Vulnerabilities

30 CVEs affecting Simplemachines products, tracked from the National Vulnerability Database, with CVSS/EPSS scores and exploitation status.

Most Affected Products

smf 221simple machines forum 201simple machine forum 2
CVE-2025-2583MEDIUM

A vulnerability was found in SimpleMachines SMF 2.1.4. It has been classified as problematic. This affects an unknown part of the file ManageNews.php. The manipulation of the argument subject/message leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor does not declare this issue a security vulnerability due to authentication requirements before being able to access any feature in the software that allows file modification.

21 Mar 2025
6.1
CVSS
CVE-2025-2582MEDIUM

A vulnerability was found in SimpleMachines SMF 2.1.4 and classified as problematic. Affected by this issue is some unknown functionality of the file ManageAttachments.php. The manipulation of the argument Notice leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor does not declare this issue a security vulnerability due to authentication requirements before being able to access any feature in the software that allows file modification.

21 Mar 2025
5.4
CVSS
CVE-2024-7438MEDIUM

A vulnerability has been found in SimpleMachines SMF 2.1.4 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /index.php?action=profile;u=2;area=showalerts;do=read of the component User Alert Read Status Handler. The manipulation of the argument aid leads to improper control of resource identifiers. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

3 Aug 2024
4.3
CVSS
CVE-2024-7437MEDIUM

A vulnerability, which was classified as critical, was found in SimpleMachines SMF 2.1.4. Affected is an unknown function of the file /index.php?action=profile;u=2;area=showalerts;do=remove of the component Delete User Handler. The manipulation of the argument aid leads to improper control of resource identifiers. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

3 Aug 2024
4.3
CVSS
CVE-2022-26982HIGHpoc

SimpleMachinesForum 2.1.1 and earlier allows remote authenticated administrators to execute arbitrary code by inserting a vulnerable php code because the themes can be modified by an administrator. NOTE: the vendor's position is that administrators are intended to have the ability to modify themes, and can thus choose any PHP code that they wish to have executed on the server.

5 Apr 2022
7.2
CVSS
CVE-2019-11574CRITICAL

An issue was discovered in Simple Machines Forum (SMF) before release 2.0.17. There is SSRF related to Subs-Package.php and Subs.php because user-supplied data is used directly in curl calls.

21 Mar 2020
9.8
CVSS
CVE-2013-4395MEDIUM

Simple Machines Forum (SMF) through 2.0.5 has XSS

12 Feb 2020
6.1
CVSS
CVE-2013-0192MEDIUMpoc

File Disclosure in SMF (SimpleMachines Forum) <= 2.0.3: Forum admin can read files such as the database config.

7 Feb 2020
4.9
CVSS
CVE-2019-12490MEDIUM

An issue was discovered in Simple Machines Forum (SMF) before 2.0.16. Reverse tabnabbing can occur because of use of _blank for external links.

22 Jan 2020
6.5
CVSS
CVE-2009-5068HIGHpoc

There is a file disclosure vulnerability in SMF (Simple Machines Forum) affecting versions through v2.0.3. On some configurations a SMF deployment is shared by several "co-admins" that are not trusted beyond the SMF deployment. This vulnerability allows them to read arbitrary files on the filesystem and therefore gain new privileges by reading the settings.php with the database passwords.

16 Jan 2020
7.2
CVSS
CVE-2005-4891CRITICALpoc

Simple Machine Forum (SMF) versions 1.0.4 and earlier have an SQL injection vulnerability that allows remote attackers to inject arbitrary SQL statements.

15 Jan 2020
9.8
CVSS
CVE-2013-7468HIGH

Simple Machines Forum (SMF) 2.0.4 allows PHP Code Injection via the index.php?action=admin;area=languages;sa=editlang dictionary parameter.

8 Mar 2019
8.1
CVSS
CVE-2013-7467MEDIUM

Simple Machines Forum (SMF) 2.0.4 allows XSS via the index.php?action=pm;sa=settings;save sa parameter.

8 Mar 2019
6.1
CVSS
CVE-2013-7466HIGH

Simple Machines Forum (SMF) 2.0.4 allows local file inclusion, with resultant remote code execution, in install.php via ../ directory traversal in the db_type parameter if install.php remains present after installation.

8 Mar 2019
8.8
CVSS
CVE-2018-10305CRITICAL

The MessageSearch2 function in PersonalMessage.php in Simple Machines Forum (SMF) before 2.0.15 does not properly use the possible_users variable in a query, which might allow attackers to bypass intended access restrictions.

24 Apr 2018
9.8
CVSS
CVE-2016-5727HIGH

LogInOut.php in Simple Machines Forum (SMF) 2.1 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via vectors related to variables derived from user input in a foreach loop.

9 Feb 2017
8.8
CVSS
CVE-2016-5726CRITICAL

Packages.php in Simple Machines Forum (SMF) 2.1 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the themechanges array parameter.

9 Feb 2017
9.8
CVSS
CVE-2013-7236HIGH

Simple Machines Forum (SMF) 2.0.6, 1.1.19, and earlier allows remote attackers to impersonate arbitrary users via a Unicode homoglyph character in a username.

29 Apr 2014
7.5
CVSS
CVE-2013-7235HIGH

Simple Machines Forum (SMF) before 1.1.19 and 2.x before 2.0.6 allows remote attackers to impersonate arbitrary users via multiple space characters characters.

29 Apr 2014
7.5
CVSS
CVE-2013-7234MEDIUM

Simple Machines Forum (SMF) before 1.1.19 and 2.x before 2.0.6 allows remote attackers to conduct clickjacking attacks via an X-Frame-Options header.

29 Apr 2014
4.3
CVSS
CVE-2013-4465MEDIUM

Unrestricted file upload vulnerability in the avatar upload functionality in Simple Machines Forum before 2.0.6 and 2.1 allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in an unspecified directory.

26 Oct 2013
4.6
CVSS
CVE-2011-4173MEDIUM

Cross-site request forgery (CSRF) vulnerability in Simple Machines Forum (SMF) 2.x before 2.0.1 allows remote attackers to hijack the authentication of administrators or moderators via vectors involving image files, a different vulnerability than CVE-2011-3615. NOTE: some of these details are obtained from third party information.

24 Oct 2011
6.8
CVSS
CVE-2011-3615HIGH

Multiple 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 SQL commands via vectors involving a (1) HTML entity or (2) display name. NOTE: some of these details are obtained from third party information.

24 Oct 2011
7.5
CVSS
CVE-2011-1131MEDIUM

The 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 where a temporary table has been created, even though this cached data is intended only for situations where a temporary table has not been created, which might allow remote attackers to obtain sensitive information via a search.

21 Jun 2011
5.0
CVSS
CVE-2011-1130HIGH

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.

21 Jun 2011
7.5
CVSS
CVE-2011-1129LOW

Cross-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 RC5, might allow remote authenticated users to inject arbitrary web script or HTML via a save_items action.

21 Jun 2011
3.5
CVSS
CVE-2011-1128HIGH

The 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 login attempts, which might make it easier for remote attackers to obtain access or cause a denial of service via a brute-force attack.

21 Jun 2011
7.5
CVSS
CVE-2011-1127CRITICAL

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.

21 Jun 2011
10.0
CVSS
CVE-2008-6971HIGHpoc

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 2.0 beta 4 includes clues about the random number generator state within a hidden form field and generates predictable validation codes, which allows remote attackers to modify passwords of other users and gain privileges.

13 Aug 2009
7.5
CVSS
CVE-2006-4564MEDIUM

SQL injection vulnerability in Sources/ManageBoards.php in Simple Machines Forum 1.1 RC3 allows remote attackers to execute arbitrary SQL commands via the cur_cat parameter.

6 Sep 2006
5.1
CVSS
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