MyBB

In MyBB before 1.8.11, the smilie module allows Directory Traversal via the pathfolder parameter.

The Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to obtain the installation path via vectors involving sending mails.

MyBB Timeline Plugin 1.0 contains cross-site scripting vulnerabilities that allow attackers to inject malicious scripts through thread titles, post content, and user profile fields like Location and Bio. Attackers can also exploit a cross-site request forgery vulnerability in…

MyBB 1.8.31 has a SQL injection vulnerability in the Admin CP's Users module allows remote authenticated users to modify the query string via direct user input or stored search filter settings.

MyBB 1.8.14 is not checking for a valid CSRF token, leading to arbitrary deletion of user accounts.

MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not check permissions consistently when listing calendars, allowing authenticated users to access titles of calendars that are otherwise inaccessible. The affected calendar-selection paths in…

MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not verify private event status consistently, allowing users with viewing and moderation permissions to access and moderate private events. The private-event check used by get_events() in…

MyBB Group MyBB contains a Incorrect Access Control vulnerability in Private forums that can result in Users can view posts from private forums without having the password. This attack appear to be exploitable via Subscribe to a forum through IDOR. This vulnerability appears to…

### Impact The registration component does not validate the text-based _Security Question_ CAPTCHA correctly, allowing attackers to bypass the challenge via a specially crafted value. [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N](https://www.first.org/cvss/calculator/3.1#CVSS:…

MyBB is free and open source forum software. Prior to 1.8.40, the built-in CAPTCHA does not consistently enforce single-use semantics, allowing remote attackers to bypass CAPTCHA controls through challenge replay. The successful validation paths in contact.php,…

MyBB is free and open source forum software. Prior to 1.8.40, the Email User controller does not sanitize sender names correctly, resulting in mail header injection. member.php?action=do_emailuser accepts the fromname HTTP parameter for guests or the stored username for…

MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP Recovery Codes module does not validate requests correctly, allowing same-site attackers to rotate a victim administrator's recovery codes with a specially crafted URL. The Admin CP Home, Preferences,…

MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP UTF-8 Conversion module does not validate certain requests correctly, allowing same-site attackers to alter table encoding and deny service with a specially crafted URL. The do=all control flow in…

MyBB is free and open source forum software. Prior to 1.8.40, the User CP Buddy/Ignore List component does not validate reciprocal buddy-list updates correctly. The usercp.php?action=do_editlists delete handler removes the selected entry from the acting user's list and then…

MyBB is free and open source forum software. Prior to 1.8.40, the Mod CP Report Center does not check permissions consistently, allowing moderators without report-management permission to mark reports as resolved. The modcp.php?action=do_reports Mark Selected as Read handler is…

MyBB is free and open source forum software. Prior to 1.8.40, the remote requests feature does not correctly handle IPv6 addresses, resulting in a server-side request forgery vulnerability. The default disallowed remote hosts list does not include IPv6 addresses. Verification in…

MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not validate moderation permissions for the destination calendar when moving events. A user with moderation permission for the source calendar can move an event to a calendar where the user…

MyBB is free and open source forum software. Prior to 1.8.40, the ACP Users View Manager module does not validate requests correctly, allowing same-site attackers to change a victim administrator's default user list view by embedding a specially crafted URL. The Set as Default…

MyBB is free and open source forum software. Prior to 1.8.40, the ACP Mass Mail module does not validate certain requests correctly, allowing same-site attackers to create draft entries from archived entries by embedding a specially crafted URL. The Resend route in Admin CP,…

MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP Security Questions module does not validate the anti-CSRF token correctly, allowing same-site attackers to enable or disable registration challenge questions with a specially crafted URL. The controller…

Multiple eval injection vulnerabilities in MyBB 1.2.10 and earlier allow remote attackers to execute arbitrary code via the sortby parameter to (1) forumdisplay.php or (2) a results action in search.php.

An XSS issue was discovered in upcoming_events.php in the Upcoming Events plugin before 1.33 for MyBB via a crafted name for an event.

The OUGC Awards plugin before 1.8.19 for MyBB allows XSS via a crafted award reason that is mishandled on the awards page or in a user profile.

Multiple cross-site scripting (XSS) vulnerabilities in MyBB (aka MyBulletinBoard) 1.8.x before 1.8.2 allow remote attackers to inject arbitrary web script or HTML via the (1) type parameter to report.php, (2) signature parameter in a do_editsig action to usercp.php, or (3) title…

SQL injection vulnerability in member.php in MyBB (aka MyBulletinBoard) 1.8.x before 1.8.2 allows remote attackers to execute arbitrary SQL commands via the question_id parameter in a do_register action.

SQL injection vulnerability in signature.php in Advanced Forum Signatures plugin (aka afsignatures) 2.0.4 for MyBB allows remote attackers to execute arbitrary SQL commands via the afs_bar_right parameter.

Multiple SQL injection vulnerabilities in signature.php in the Advanced Forum Signatures (aka afsignatures) plugin 2.0.4 for MyBB allow remote attackers to execute arbitrary SQL commands via the (1) afs_type, (2) afs_background, (3) afs_showonline, (4) afs_bar_left, (5)…

Multiple SQL injection vulnerabilities in ajaxfs.php in the Ajax forum stat (Ajaxfs) Plugin 2.0 for MyBB (aka MyBulletinBoard) allow remote attackers to execute arbitrary SQL commands via the (1) tooltip or (2) usertooltip parameter.

SQL injection vulnerability in admin/modules/user/users.php in MyBB (aka MyBulletinBoard) 1.6.6 allows remote attackers to execute arbitrary SQL commands via the conditions[usergroup][] parameter in a search action to admin/index.php.

Cross-site scripting (XSS) vulnerability in admin/modules/user/users.php in MyBB (aka MyBulletinBoard) 1.6.6 allows remote attackers to inject arbitrary web script or HTML via the conditions[usergroup][] parameter in a search action to admin/index.php.

Multiple SQL injection vulnerabilities in MyBB (aka MyBulletinBoard) before 1.6.1 allow remote attackers to execute arbitrary SQL commands via the keywords parameter in a (1) do_search action to search.php or (2) do_stuff action to private.php. NOTE: the vendor disputes this…

SQL injection vulnerability in userbarsettings.php in the Userbar plugin 2.2 for MyBB Forum allows remote attackers to execute arbitrary SQL commands via the image2 parameter.

Cross-site scripting (XSS) vulnerability in myps.php in MyBB (aka MyBulletinBoard) 1.4.10 allows remote attackers to inject arbitrary web script or HTML via the username parameter in a donate action.

SQL injection vulnerability in inc/datahandlers/user.php in MyBB (aka MyBulletinBoard) before 1.4.7 allows remote authenticated users to execute arbitrary SQL commands via the birthdayprivacy parameter.

SQL injection vulnerability in pages.php in Custom Pages 1.0 plugin for MyBulletinBoard (MyBB) allows remote attackers to execute arbitrary SQL commands via the page parameter.

SQL injection vulnerability in inc/datahandlers/pm.php in MyBB before 1.2.12 allows remote authenticated users to execute arbitrary SQL commands via the options[disablesmilies] parameter to private.php.

Multiple SQL injection vulnerabilities in MyBB 1.2.10 and earlier allow remote moderators and administrators to execute arbitrary SQL commands via (1) the mergepost parameter in a do_mergeposts action, (2) rid parameter in an allreports action, or (3) threads parameter in a…

Multiple SQL injection vulnerabilities in calendar.php in MyBB (aka MyBulletinBoard) 1.2.5 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) year or (2) month parameter. NOTE: the provenance of this information is unknown; the details are obtained…

SQL injection vulnerability in calendar.php in MyBB (aka MyBulletinBoard) 1.2.5 and earlier allows remote attackers to execute arbitrary SQL commands via the day parameter in a dayview action.

SQL injection vulnerability in the create_session function in class_session.php in MyBB (aka MyBulletinBoard) 1.2.3 and earlier allows remote attackers to execute arbitrary SQL commands via the Client-IP HTTP header, as utilized by index.php, a related issue to CVE-2006-3775.

Directory traversal vulnerability in richedit/keyboard.php in eCardMAX HotEditor (Hot Editor) 4.0, and the HotEditor plugin for MyBB, allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the first parameter.

SQL injection vulnerability in the init function in class_session.php in MyBB (aka MyBulletinBoard) 1.1.5 allows remote attackers to execute arbitrary SQL commands via the CLIENT-IP HTTP header ($_SERVER['HTTP_CLIENT_IP'] variable), as utilized by index.php.

SQL injection vulnerability in showthread.php in MyBB (aka MyBulletinBoard) 1.1.1 allows remote attackers to execute arbitrary SQL commands via the comma parameter.

Cross-site scripting (XSS) vulnerability in member.php in DevBB 1.0.0 and earlier allows remote attackers to inject arbitrary web script or HTML via the member parameter in a viewpro action.

SQL injection vulnerability in index.php in MyBB (MyBulletinBoard) before 1.04 allows remote attackers to execute arbitrary SQL commands via the referrer parameter.

MyBB (MyBulletinBoard) 1.1.0 does not set the constant KILL_GLOBAL variable in (1) global.php and (2) inc/init.php, which allows remote attackers to initialize arbitrary variables that are processed by an @extract command, which could then be leveraged to conduct cross-site…

Cross-site scripting (XSS) vulnerability in search.php in MyBulletinBoard (MyBB) 1.02 allows remote attackers to inject arbitrary web script or HTML via the (1) sortby and (2) sortordr parameters, which are not properly handled in a redirection.

Multiple cross-site scripting (XSS) vulnerabilities in usercp.php in MyBulletinBoard (MyBB) 1.02 allow remote attackers to inject arbitrary web script or HTML via the (1) notepad parameter in a notepad action and (2) signature parameter in an editsig action. NOTE: These are…

SQL injection vulnerability in usercp.php in MyBulletinBoard (MyBB) allows remote attackers to execute arbitrary SQL commands via the awayday parameter.

Multiple SQL injection vulnerabilities in MyBulletinBoard (MyBB) 1.00 RC4 with Security Patch allow remote attackers to execute arbitrary SQL commands via the Username field in (1) index.php or (2) member.php, action parameter to (3) search.php or (4) member.php, or (5)…