TI-2025-23020 Aliases CVE-2025-31883 GHSA-jpj3-4vjw-5jmq

WordPress WebinarPress plugin <= 1.33.28 - Cross Site Scripting (XSS) vulnerability

LOW 26CWE-79Published 2025-04-01 · Updated 2026-04-28

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

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

Summary

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPWebinarSystem WebinarPress wp-webinarsystem allows Stored XSS.This issue affects WebinarPress: from n/a through <= 1.33.28.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00236 14th 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
WPWebinarSystem	WebinarPress	up to 1.33.28	—	No fix listed	CNA

WebinarPress VendorWPWebinarSystem Affected up to 1.33.28 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:webinarpress:webinarpress:::::lite:wordpress::	up to 1.33.28	Vulnerable	WPWebinarSystem

cpe:2.3:a:webinarpress:webinarpress:*:*:*:*:lite:wordpress:*:* Versions up to 1.33.28 Vulnerable ·WPWebinarSystem

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-31883
2026-10-03 Alias added: GHSA-jpj3-4vjw-5jmq

References

Advisory 1

https://patchstack.com/database/Wordpress/Plugin/wp-webinarsystem/vulnerability/wordpress-webinarpress-plugin-1-33-27-cross-site-scripting-xss-vulnerability?_s_id=cve

TI-2025-30132 WordPress WebinarPress plugin <= 1.33.28 - Server Side Request Forgery (SSRF) Vulnerability CVSS 3.1CRITICAL 9.8
TI-2024-10440 Missing authorization in WPWebinarSystem WebinarPress – Webinar System for WordPress CVSS 3.1HIGH 8.8
TI-2024-10441 Missing authorization in WPWebinarSystem WebinarPress – Webinar System for WordPress CVSS 3.1HIGH 8.8
TI-2024-28991 WordPress WordPress Webinar Plugin – WebinarPress plugin <= 1.33.20 - Cross Site Request Forgery (CSRF) vulnerability CVSS 3.1MEDIUM 6.1
TI-2025-23758 WordPress WebinarPress plugin <= 1.33.28 - Open Redirection Vulnerability CVSS 3.1MEDIUM 4.7
TI-2025-39120 WordPress WebinarPress plugin <= 1.33.28 - Broken Access Control vulnerability CVSS 3.1MEDIUM 4.3

See all 7 →

Sources

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