CVE-2023-51293

7.5 highEPSS 0.7%

High (7.5) in phpjabbers event booking calendar. EPSS 0.7% chance of exploitation in the next 30 days.

A lack of rate limiting in the 'Forgot Password', 'Email Settings' feature of PHPJabbers Event Booking Calendar 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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2025-02-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

phpjabbers:event_booking_calendar

References

http://packetstormsecurity.com/files/176495/PHPJabbers-Event-Booking-Calendar-4.0-Missing-Rate-Limiting.html
https://packetstorm.news/files/id/176495
https://www.phpjabbers.com/event-booking-calendar/#sectionDemo

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