MyBB before 1.8.29 allows Remote Code Injection by an admin with the "Can manage settings?" permission. The Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type "php" with PHP code, executed on Change Settings pages.
CVSS Score
7.2
EPSS Score
0.007
Published
2021-11-04
MyBB before 1.8.28 allows stored XSS because the displayed Template Name value in the Admin CP's theme management is not escaped properly.
CVSS Score
5.4
EPSS Score
0.003
Published
2021-10-26
Cross Site Scripting (XSS) in MyBB v1.8.20 allows remote attackers to inject arbitrary web script or HTML via the "Title" field found in the "Add New Forum" page by doing an authenticated POST HTTP request to '/Upload/admin/index.php?module=forum-management&action=add'.
CVSS Score
5.4
EPSS Score
0.002
Published
2021-08-31
Cross Site Scripting (XSS) in MyBB v1.8.20 allows remote attackers to inject arbitrary web script or HTML via the "Description" field found in the "Add New Forum" page by doing an authenticated POST HTTP request to '/Upload/admin/index.php?module=forum-management&action=add'.
CVSS Score
5.4
EPSS Score
0.001
Published
2021-08-31
SQL Injection vulnerablity in MyBB before 1.8.26 via theme properties included in theme XML files.
CVSS Score
8.8
EPSS Score
0.057
Published
2021-03-15
SQL Injection vulnerability in MyBB before 1.8.26 via poll vote count. (issue 1 of 3).
CVSS Score
8.8
EPSS Score
0.002
Published
2021-03-15
SQL Injection vulnerability in MyBB before 1.8.26 via the Copy Forum feature in Forum Management. (issue 2 of 3).
CVSS Score
7.2
EPSS Score
0.003
Published
2021-03-15
SQL Injection vulnerability in MyBB before 1.8.26 via User Groups. (issue 3 of 3).
CVSS Score
7.2
EPSS Score
0.003
Published
2021-03-15
Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools.
CVSS Score
6.1
EPSS Score
0.002
Published
2021-03-15
Cross-site Scripting (XSS) vulnerability in MyBB before 1.8.26 via Nested Auto URL when parsing messages.
CVSS Score
6.1
EPSS Score
0.022
Published
2021-03-15