CVE-2026-11798 is a reflected cross-site scripting vulnerability in the Social Share, Social Login and Social Comments Plugin – Super Socializer WordPress plugin. The issue arises from insufficient sanitization and escaping of the 'heateor_mastodon_share' parameter in all versions up to and including 7.14.5. An unauthenticated attacker can exploit this by tricking a user into clicking a malicious link, causing arbitrary script execution in the user's browser context.

Successful exploitation can lead to limited confidentiality and integrity impacts by executing arbitrary scripts in the context of the affected website. This may allow attackers to steal user session data or perform actions on behalf of the user. There is no impact on availability. The vulnerability requires user interaction (clicking a crafted link) and no privileges are needed to exploit it.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should be cautious about clicking untrusted links that interact with the affected plugin. Monitor official channels for updates or patches from the vendor.