Multiple cross-site scripting (XSS) vulnerabilities in the administrative backend in MyBB (aka MyBulletinBoard) before 1.8.4 allow remote authenticated users to inject arbitrary web script or HTML via the (1) MIME-type field in an add action in the config-attachment_types module to admin/index.php;...
5.4AI Score
0.001EPSS
Cross-site scripting (XSS) vulnerability in member.php in MyBB (aka MyBulletinBoard) before 1.8.4 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
5.8AI Score
0.002EPSS
Cross-site scripting (XSS) vulnerability in the MyCode editor in MyBB (aka MyBulletinBoard) before 1.8.4 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
5.8AI Score
0.002EPSS
Cross-site request forgery (CSRF) vulnerability in the Admin Control Panel (ACP) login in MyBB (aka MyBulletinBoard) before 1.8.4 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.
7.3AI Score
0.002EPSS
A JSON library in MyBB (aka MyBulletinBoard) before 1.8.4 allows remote attackers to obtain the installation path via unknown vectors.
6.7AI Score
0.003EPSS
The cache handler in MyBB (aka MyBulletinBoard) before 1.8.4 does not properly check the encoding of input to the var_export function, which allows attackers to have an unspecified impact via unknown vectors.
6.8AI Score
0.003EPSS
Unspecified vulnerability in MyBB (aka MyBulletinBoard) before 1.8.4 has unknown attack vectors related to "Group join request notifications sent to wrong group leaders."
6.6AI Score
0.003EPSS
Cross-site scripting (XSS) vulnerability in the quick edit function in xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.8.5 allows remote attackers to inject arbitrary web script or HTML via the content of a post.
5.8AI Score
0.002EPSS
xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to bypass intended access restrictions via vectors related to the forum password.
8.3CVSS
7.9AI Score
0.003EPSS
SQL injection vulnerability in the Group Promotions module in the admin control panel in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
10CVSS
9.8AI Score
0.002EPSS
Cross-site scripting (XSS) vulnerability in the error handler in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
6.1CVSS
6AI Score
0.001EPSS
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 might allow remote attackers to inject arbitrary web script or HTML via vectors related to "old upgrade files."
6.1CVSS
5.9AI Score
0.002EPSS
MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allow remote attackers to obtain the installation path via vectors involving error log files.
7.5CVSS
7.3AI Score
0.002EPSS
SQL injection vulnerability in the moderation tool in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to execute arbitrary SQL commands via unspecified vectors.
9.8CVSS
9.9AI Score
0.002EPSS
newreply.php in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to have unspecified impact by leveraging a missing permission check.
9.8CVSS
9.6AI Score
0.005EPSS
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors related to login.
6.1CVSS
6.2AI Score
0.001EPSS
Cross-site scripting (XSS) vulnerability in member validation in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
6.1CVSS
6.2AI Score
0.001EPSS
Cross-site scripting (XSS) vulnerability in the User control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
6.1CVSS
6.2AI Score
0.001EPSS
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors involving Mod control panel logs.
6.1CVSS
6.2AI Score
0.001EPSS
Cross-site scripting (XSS) vulnerability in the Mod control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors involving editing users.
6.1CVSS
6.2AI Score
0.001EPSS
Cross-site scripting (XSS) vulnerability in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors involving pruning logs.
6.1CVSS
6.2AI Score
0.001EPSS
MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to obtain sensitive database information via vectors involving templates.
7.5CVSS
7.6AI Score
0.003EPSS
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.
5.3CVSS
6.1AI Score
0.002EPSS
MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allow attackers to have unspecified impact via vectors related to low adminsid and sid entropy.
9.8CVSS
9.5AI Score
0.005EPSS
The Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to conduct clickjacking attacks via unspecified vectors.
6.5CVSS
7AI Score
0.002EPSS
MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allow remote attackers to obtain sensitive information by leveraging missing directory listing protection in upload directories.
7.5CVSS
7.8AI Score
0.003EPSS
MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to "style import."
7.5CVSS
7.4AI Score
0.003EPSS
SQL injection vulnerability in the users data handler in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
9.8CVSS
9.8AI Score
0.002EPSS
The fetch_remote_file function in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allows remote attackers to conduct server-side request forgery (SSRF) attacks via unspecified vectors.
7.4CVSS
7.4AI Score
0.002EPSS
MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows might allow remote attackers to obtain sensitive information from ACP backups via vectors involving a short name.
7.5CVSS
7.2AI Score
0.003EPSS
Cross-site scripting (XSS) vulnerability in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
6.1CVSS
6AI Score
0.002EPSS
MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote attackers to have unspecified impact via vectors related to "loose comparison false positives."
9.8CVSS
9.4AI Score
0.006EPSS
Cross-site scripting (XSS) vulnerability in the Users module in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
6.1CVSS
6AI Score
0.001EPSS
The installer in MyBB before 1.8.13 allows remote attackers to execute arbitrary code by writing to the configuration file.
9.8CVSS
9.7AI Score
0.055EPSS
5.4CVSS
5.4AI Score
0.005EPSS
7.7CVSS
7.5AI Score
0.004EPSS
In MyBB before 1.8.11, the Email MyCode component allows XSS, as demonstrated by an onmouseover event.
6.1CVSS
6.4AI Score
0.001EPSS
In MyBB before 1.8.11, the smilie module allows Directory Traversal via the pathfolder parameter.
5.3CVSS
5.9AI Score
0.001EPSS
MyBB Group MyBB contains a File Inclusion vulnerability in Admin panel (Tools and Maintenance -> Task Manager -> Add New Task) that can result in Allows Local File Inclusion on modern PHP versions and Remote File Inclusion on ancient PHP versions. This attack appear to be exploitable via Must...
7.2CVSS
7AI Score
0.002EPSS
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 have been fixed in 1...
4.3CVSS
5.2AI Score
0.001EPSS
MyBB 1.8.15, when accessed with Microsoft Edge, mishandles 'target="_blank" rel="noopener"' in A elements, which makes it easier for remote attackers to conduct redirection attacks.
6.1CVSS
6.1AI Score
0.001EPSS
6.1CVSS
6.3AI Score
0.01EPSS
Trash Bin plugin 1.1.3 for MyBB has cross-site scripting (XSS) via a thread subject and a cross-site request forgery (CSRF) via a post subject.
8.8CVSS
8.2AI Score
0.004EPSS
In the Ban List plugin 1.0 for MyBB, any forum user with mod privileges can ban users and input an XSS payload into the ban reason, which is executed on the bans.php page.
5.4CVSS
5.2AI Score
0.002EPSS
An issue was discovered in inc/class_feedgeneration.php in MyBB 1.8.17. On the forum RSS Syndication page, one can generate a URL such as http://localhost/syndication.php?fid=&type=atom1.0&limit=15. The thread titles (within title elements of the generated XML documents) aren't sanitized, leading t...
6.1CVSS
6.1AI Score
0.01EPSS
A Persistent XSS issue was discovered in the Visual Editor in MyBB before 1.8.19 via a Video MyCode.
5.4CVSS
5AI Score
0.005EPSS
A reflected XSS vulnerability in the ModCP Profile Editor in MyBB before 1.8.20 allows remote attackers to inject JavaScript via the 'username' parameter.
6.1CVSS
5.9AI Score
0.001EPSS
A reflected XSS vulnerability in index.php in MyBB 1.8.x through 1.8.19 allows remote attackers to inject JavaScript via the 'upsetting[bburl]' parameter.
6.1CVSS
5.9AI Score
0.001EPSS
5.4CVSS
5.2AI Score
0.001EPSS
MyBB 1.8.14 is not checking for a valid CSRF token, leading to arbitrary deletion of user accounts.
4.9CVSS
5.2AI Score
0.001EPSS