Threats Tagged 'ghsa-8c9r-46mw-f22c'
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Threats Tagged 'ghsa-8c9r-46mw-f22c'
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0 Concrete CMS versions 9.0.0 through 9.5.2 contain a stored cross-site scripting (XSS) vulnerability in the Board Custom Slot dialog. This occurs because the save_template endpoint accepts and stores client-supplied data without properly verifying or encoding it, allowing a user with board content editing permissions to inject JavaScript payloads. These payloads execute in the browsers of users who view the affected board slot, including anonymous visitors and dashboard users, potentially leading to session or action takeover and privilege escalation. Versions prior to 9.0.0 are not affected as they lack the Boards feature. Join the discussion | GCVE Database | 09/11/2026, 21:31:25 UTC Added: 09/12/2026, 00:43:18 UTC |
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