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GHSA-9rg8-2wvr-fgjh
Impact
The control panel action formie/sent-notifications/get-resend-modal-content (SentNotificationsController::actionGetResendModalContent) performed only requireAcceptsJson() and loaded a SentNotification by request id without permission or object-level authorization checks.
Any authenticated user who could invoke the action could enumerate notification IDs and read full email content — including recipient headers and the complete HTML body containing submitted form data (PII) — without formie-accessSentNotifications or equivalent permission. Sibling actions in the same controller enforced authorization.
Patches
Fixed in 3.1.31 (Craft 5) and 2.2.23 (Craft 4).
Craft 5: canView() is enforced after loading, consistent with actionEdit.
Craft 4: formie-viewSentNotifications permission is required.
Workarounds
Restrict CP access to trusted users only until upgraded. No configuration workaround.
- Reported by Jorge González (jorge@jmilla.es)
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The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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