TI-2023-04083 Aliases CVE-2023-4423 GHSA-3r9m-m4c8-57jx

Cross-site scripting in WP Event Manager – Events Calendar, Registrations, Sell Tickets…

LOW 23CWE-79Published 2023-09-27 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 3.1.37.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00596 48th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged 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: 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

Vendor	Product	Affected versions	Fixed in	Status	Source
WP Event Manager	WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce	up to 3.1.37.1	—	No fix listed	CNA

WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce VendorWP Event Manager Affected up to 3.1.37.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wp-eventmanager:wp_event_manager::::::wordpress::*	before 3.1.38	Vulnerable	WP Event Manager

cpe:2.3:a:wp-eventmanager:wp_event_manager:*:*:*:*:*:wordpress:*:* Versions before 3.1.38 Vulnerable ·WP Event Manager

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-4423
2026-10-03 Alias added: GHSA-3r9m-m4c8-57jx

References

Exploit 2

Patch 1

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2969034%40wp-event-manager%2Ftrunk&old=2953169%40wp-event-manager%2Ftrunk&sfp_email=&sfph_mail=

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/dd9d22b0-a84a-4bf2-b8b4-89bae2970f29?source=cve

TI-2025-02444 WP Event Manager <= 3.1.50 - Unauthenticated Stored Cross-Site Scripting via 'organizer_name' CVSS 3.1HIGH 7.2
TI-2023-25834 WordPress WP Event Manager Plugin <= 3.1.39 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
TI-2023-28557 WordPress WP User Profile Avatar Plugin <= 1.0 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.5
TI-2022-01348 WP Event Manager < 3.1.28 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
TI-2024-02506 Cross-site scripting in WP Event Manager – Events Calendar, Registrations, Sell Tickets… CVSS 3.1MEDIUM 6.4
TI-2024-00900 WP Event Manager <= 3.1.41 - Reflected Cross-Site Scripting via plugin CVSS 3.1MEDIUM 6.1

See all 9 →

Sources

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