| Package | Affected versions | Patched versions |
|---|---|---|
| hotel booking system | = 4.0 |
A lack of rate limiting in the 'Email Settings' feature of PHPJabbers Hotel Booking System v4.0 allows attackers to send an excessive amount of email for a legitimate user, leading to a possible Denial of Service (DoS) via a large amount of generated e-mail messages.
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