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TI-2023-18126 Aliases CVE-2023-36131GHSA-5g27-h8hr-hm85

PHPJabbers Availability Booking Calendar 5.0 is vulnerable to Incorrect Access Control…

Priority MEDIUM 51Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

PHPJabbers Availability Booking Calendar 5.0 is vulnerable to Incorrect Access Control due to improper input validation of password parameter.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00891 59th percentileScored 2026-11-07
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
Total

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:availability_booking_calendar:5.0:*:*:*:*:*:*:*5.0VulnerablePHPJabbers
  • cpe:2.3:a:phpjabbers:availability_booking_calendar:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·PHPJabbers

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-36131
  2. 2026-10-03 Alias added: GHSA-5g27-h8hr-hm85

References

  • TI-2023-26647 A lack of rate limiting in pjActionAJaxSend in Availability Booking Calendar 5.0 allows… CVSS 3.1HIGH 7.5
  • TI-2023-03806 PHP Jabbers Availability Booking Calendar index.php cross site scripting CVSS 3.1MEDIUM 6.1
  • TI-2023-18128 PHPJabbers Availability Booking Calendar 5.0 is vulnerable to User Account Takeover through username/password change. CVSS 3.1CRITICAL 9.8
  • TI-2023-18127 PHP Jabbers Availability Booking Calendar 5.0 is vulnerable to Incorrect Access Control. CVSS 3.1CRITICAL 9.8
  • TI-2023-26079 Availability Booking Calendar 5.0 allows CSV injection via the unique ID field in the Reservations list component. CVSS 3.1HIGH 8.8
  • TI-2023-26080 A Cross Site Scripting vulnerability in Availability Booking Calendar 5.0 allows an… CVSS 3.1MEDIUM 6.1
See all 7 →

Sources