InstantCMS: Unprotected Access to Moderator Features

Summary

InstantCMS versions before 2.18.1 have a security flaw that lets attackers take control of user accounts, perform actions on their behalf, and access sensitive features. This is a serious issue that requires updating to the latest version, 2.18.1, to fix. Update InstantCMS to the latest version to protect your site.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions	Fix available
instantcms	instantcms	<= 2.18.1	–

Original title

InstantCMS is a free and open source content management system. Prior to 2.18.1, InstantCMS does not validate CSRF tokens, which allows attackers grant moderator privileges to users, execute schedu...

Original description

InstantCMS is a free and open source content management system. Prior to 2.18.1, InstantCMS does not validate CSRF tokens, which allows attackers grant moderator privileges to users, execute scheduled tasks, move posts to trash, and accept friend requests on behalf of the user. This vulnerability is fixed in 2.18.1.

nvd CVSS3.1 7.1

Vulnerability type

CWE-352 Cross-Site Request Forgery (CSRF)

https://github.com/instantsoft/icms2/security/advisories/GHSA-pp43-262q-h73m