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TI-2026-19023 Aliases CVE-2026-23622GHSA-54v4-4685-vwrj

CSRF Protection Bypass: Sensitive endpoints accept GET requests, enabling admin account takeover

Priority HIGH 74CWE-352Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-352.

Summary

Easy!Appointments is a self hosted appointment scheduler. In 1.5.2 and earlier, application/core/EA_Security.php::csrf_verify() only enforces CSRF for POST requests and returns early for non-POST methods. Several application endpoints perform state-changing operations while accepting parameters from GET (or $_REQUEST), so an attacker can perform CSRF by forcing a victim's browser to issue a crafted GET request. Impact: creation of admin accounts, modification of admin email/password, and full admin account takeover.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00231 13th 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
Poc
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
alextselegidiseasyappointmentsup to 1.5.2—No fix listedCNA
—alextselegidis/easyappointments (Packagist)up to 1.5.2—No fix listedGHSA-54v4-4685-vwrj
  • easyappointments Vendoralextselegidis Affected up to 1.5.2 Fixed in — No fix listed CNA
  • alextselegidis/easyappointments (Packagist) Vendor— Affected up to 1.5.2 Fixed in — No fix listed GHSA-54v4-4685-vwrj

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:easyappointments:easy\!appointments:*:*:*:*:*:-:*:*up to 1.5.2Vulnerablealextselegidis
  • cpe:2.3:a:easyappointments:easy\!appointments:*:*:*:*:*:-:*:* Versions up to 1.5.2 Vulnerable ·alextselegidis

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23622
  2. 2026-10-03 Alias added: GHSA-54v4-4685-vwrj

References

Exploit 1

Advisory 1

Other 2

  • TI-2025-32119 alextselegidis Easy!Appointments v1.5.1 was discovered to contain a SQL injection… CVSS 3.1HIGH 8.1
  • TI-2025-21080 Booking logic flaw in Easy!Appointments v1.5.1 allows unauthenticated attackers to create… CVSS 3.1HIGH 7.5
  • TI-2025-22965 WordPress Easy!Appointments plugin <= 1.4.2 - Cross Site Request Forgery (CSRF) to Settings Change vulnerability CVSS 3.1HIGH 8.8
  • TI-2018-09371 Easy!Appointments 1.3.0 has a Missing Authorization issue allowing retrieval of hashed passwords and salts. CVSS 3.1HIGH 7.5
  • TI-2018-09370 Easy!Appointments 1.3.0 has a Guessable CAPTCHA issue. CVSS 3.1MEDIUM 6.5
  • TI-2024-00643 Easy!Appointments <= 1.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences