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TI-2023-27988 Aliases CVE-2023-51316GHSA-m4wh-553v-44vf

A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Bus Reservation…

Priority MEDIUM 40CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00749 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:phpjabbers:bus_reservation_system:1.1:*:*:*:*:*:*:*1.1VulnerablePHPJabbers
  • cpe:2.3:a:phpjabbers:bus_reservation_system:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·PHPJabbers

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-51316
  2. 2026-10-03 Alias added: GHSA-m4wh-553v-44vf

References

  • TI-2023-27991 PHPJabbers Bus Reservation System v1.1 is vulnerable to CSV Injection vulnerability which… CVSS 3.1HIGH 8.8
  • TI-2023-27990 PHPJabbers Bus Reservation System v1.1 is vulnerable to Multiple Stored Cross-Site… CVSS 3.1MEDIUM 5.4
  • TI-2023-30160 Bus Reservation System 1.1 Multiple SQL Injection via pickup_id Parameter CVSS 4.0CRITICAL 9.3
  • TI-2023-03807 PHP Jabbers Bus Reservation System index.php cross site scripting CVSS 3.1MEDIUM 6.1

Sources