Unrated severityNVD Advisory· Published Mar 9, 2026· Updated Mar 10, 2026
InstantCMS has Multiple CSRF Vulnerabilities
CVE-2026-28281
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.
Affected products
2- Range: <2.18.1
- Range: < 2.18.1
Patches
Vulnerability mechanics
References
1- github.com/instantsoft/icms2/security/advisories/GHSA-pp43-262q-h73mmitrex_refsource_CONFIRM
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