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7.5

PHPJabbers Bus Reservation System v1.1: Excessive Email Sending

CVE-2023-51316 · published 1 year ago
Summary

An attacker can send a large amount of emails from a legitimate user's account, potentially overwhelming the email system. This can lead to a denial of service, causing inconvenience to the user and disrupting email delivery. To mitigate this, update the software to a version that includes rate limiting on the 'Forgot Password' feature.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
phpjabbers bus_reservation_system 1.1
cpe:2.3:a:phpjabbers:bus_reservation_system:1.1:*:*:*:*:*:*:*
Original advisory text
A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Bus Reservation System v1.1 allows attackers to send an excessive amount of email for a legitimate user, leading to a possible...
A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Bus Reservation System v1.1 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.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker partial control
Severity
7.5 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-400Uncontrolled Resource Consumption
Timeline
Published20 Feb 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2023-51316 · NVD
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