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TI-2022-04266 Aliases CVE-2022-4668GHSA-2xhc-425v-mmxp

Easy Appointments < 3.11.2 - Contributor+ Stored XSS in Shortcode

Priority MEDIUM 58Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The Easy Appointments WordPress plugin before 3.11.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00476 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Easy Appointments (Unknown): 3.11.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
UnknownEasy Appointmentsbefore 3.11.23.11.2Patch availableCNA
  • Easy Appointments VendorUnknown Affected before 3.11.2 Fixed in 3.11.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:easy-appointments:easy_appointments:*:*:*:*:*:wordpress:*:*before 3.11.2VulnerableEasy Appointments
  • cpe:2.3:a:easy-appointments:easy_appointments:*:*:*:*:*:wordpress:*:* Versions before 3.11.2 Vulnerable ·Easy Appointments

Remediation

  • Fix · CNA Easy Appointments (Unknown) Fixed in 3.11.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4668
  2. 2026-10-03 Alias added: GHSA-2xhc-425v-mmxp

References

Exploit 1

  • TI-2022-16753 WordPress Easy Appointments Plugin <= 3.11.9 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
  • TI-2024-02652 Easy Appointments <= 3.11.18 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
  • TI-2017-11567 The Easy Appointments plugin before 1.12.0 for WordPress has XSS via a Settings values in the admin panel. CVSS 3.0MEDIUM 6.1
  • TI-2023-14562 WordPress Easy Appointments plugin <= 3.10.7 - Auth. Stored Cross-Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.1
  • TI-2024-02654 Easy Appointments <= 3.11.18 - Insufficient Authorization CVSS 3.1MEDIUM 4.3

Sources

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