TI-2024-09153 Aliases CVE-2024-9864 GHSA-55gg-5hf5-7f4j

EventPrime – Modern Events Calendar, Bookings and Tickets <= 4.0.4.7 - Unauthenticated Stored Cross-Site Scripting

LOW 27CWE-79Published 2024-10-24 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
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 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via ticket names in all versions up to, and including, 4.0.4.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable when front-end users can submit new events with tickets.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00317 24th 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: 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
Metagauss	EventPrime – Events Calendar, Bookings and Tickets	up to 4.0.4.7	—	No fix listed	CNA

EventPrime – Events Calendar, Bookings and Tickets VendorMetagauss Affected up to 4.0.4.7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:metagauss:eventprime::::::wordpress::*	before 4.0.4.8	Vulnerable	Metagauss

cpe:2.3:a:metagauss:eventprime:*:*:*:*:*:wordpress:*:* Versions before 4.0.4.8 Vulnerable ·Metagauss

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-9864
2026-10-03 Alias added: GHSA-55gg-5hf5-7f4j

References

Patch 1

https://plugins.trac.wordpress.org/changeset/3170503/

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/bc2a66cb-ad13-428f-a25a-b2807450aa16?source=cve

TI-2023-03938 EventPrime <= 3.2.9 - Booking Pricing Bypass CVSS 3.1MEDIUM 5.3
TI-2024-04340 EventPrime – Events Calendar, Bookings and Tickets < 3.5.0 - Subscriber+ Arbitrary booking settings update CVSS 3.1MEDIUM 6.4
TI-2023-04816 EventPrime < 3.2.0 - Reflected HTML Injection on keyword parameter CVSS 3.1MEDIUM 6.1
TI-2023-03936 EventPrime < 3.2.0 - Reflected XSS CVSS 3.1MEDIUM 6.1
TI-2023-05915 EventPrime < 3.3.6 - Unauthenticated Event Access CVSS 3.1MEDIUM 5.3
TI-2023-05078 EventPrime < 3.2.0 - Booking Creation via CSRF CVSS 3.1MEDIUM 4.3

See all 26 →

Sources

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