It was found in vanilla forums before 2.0.10 a potential linkbait vulnerability in dispatcher.

It was found in vanilla forums before 2.0.10 a cross-site scripting vulnerability where a filename could contain arbitrary code to execute on the client side.

index.php?p=/dashboard/settings/branding in Vanilla 2.6.3 allows stored XSS.

Vanilla Forums 2.0.17.1 through 2.0.17.5 has XSS in /vanilla/index.php via the p parameter.

An Access Control vulnerability exists in the Facebook, Twitter, and Embedded plugins in Vanilla Forums before 2.0.17.9.

An issue exists in Vanilla Forums before 2.0.17.9 due to the way cookies are handled.

In Vanilla before 2.6.4, a flaw exists within the getSingleIndex function of the AddonManager class. The issue results in a require call using a crafted type value, leading to Directory Traversal with File Inclusion. An attacker can leverage this vulnerability to execute code under the context of the web server.

Multiple stored XSS in Vanilla Forums before 2.5 allow remote attackers to inject arbitrary JavaScript code into any message on forum.

Vanilla before 2.5.5 and 2.6.x before 2.6.2 allows Remote Code Execution because authenticated administrators have a reachable call to unserialize in the Gdn_Format class.

Vanilla 2.6.x before 2.6.4 allows remote code execution.

Vanilla before 2.6.1 allows XSS via the email field of a profile.

Vanilla before 2.6.1 allows SQL injection via an invitationID array to /profile/deleteInvitation, related to applications/dashboard/models/class.invitationmodel.php and applications/dashboard/controllers/class.profilecontroller.php.

In Vanilla before 2.6.1, the polling functionality allows Insecure Direct Object Reference (IDOR) via the Poll ID, leading to the ability of a single user to select multiple Poll Options (e.g., vote for multiple items).

Vanilla Forums below 2.1.5 are affected by CSRF leading to Deleting topics and comments from forums Admin access

The from method in library/core/class.email.php in Vanilla Forums before 2.3.1 allows remote attackers to spoof the email domain in sent messages and potentially obtain sensitive information via a crafted HTTP Host header, as demonstrated by a password reset request.

Multiple cross-site scripting (XSS) vulnerabilities in Vanilla Forums before 2.0.18.13 and 2.1.x before 2.1.1 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Multiple cross-site scripting (XSS) vulnerabilities in the AboutMe plugin 1.1.1 for Vanilla Forums allow remote attackers to inject arbitrary web script or HTML via the (1) AboutMe/RealName, (2) AboutMe/Name, (3) AboutMe/Quote, (4) AboutMe/Loc, (5) AboutMe/Emp, (6) AboutMe/JobTit, (7) AboutMe/HS, (8) AboutMe/Col, (9) AboutMe/Bio, (10) AboutMe/Inter, (11) AboutMe/Mus, (12) AboutMe/Gam, (13) AboutMe/Mov, (14) AboutMe/FTV, or (15) AboutMe/Bks parameter to the Edit My Details page. NOTE: some of these details are obtained from third party information.

Cross-site scripting (XSS) vulnerability in the LatestComment plugin 1.1 for Vanilla Forums allows remote attackers to inject arbitrary web script or HTML via the discussion title.

Unspecified vulnerability in the update check in Vanilla Forums before 2.0.18.8 has unspecified impact and remote attack vectors, related to "object injection."

Multiple SQL injection vulnerabilities in Vanilla Forums before 2.0.18.8 allow remote attackers to execute arbitrary SQL commands via the parameter name in the Form/Email array to (1) entry/signin or (2) entry/passwordrequest.

The edit-profile page in Vanilla Forums before 2.1a32 allows remote authenticated users to modify arbitrary profile settings by replacing the UserID value during a man-in-the-middle attack, related to a "parameter manipulation" issue.

Vanilla 2.0.16 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by plugins/Minify/min/utils.php and certain other files.

The cookie implementation in Vanilla Forums before 2.0.17.6 makes it easier for remote attackers to spoof signed requests, and consequently obtain access to arbitrary user accounts, via HMAC timing attacks.

Cross-site scripting (XSS) vulnerability in Vanilla Forums before 2.0.17.6 allows remote attackers to inject arbitrary web script or HTML via the p parameter to an unspecified component, a different vulnerability than CVE-2011-0526.

Open redirect vulnerability in Vanilla Forums before 2.0.17.6 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the Target parameter to an unspecified component, a different vulnerability than CVE-2011-0526.