What is CVE-2025-31883?

CVE-2025-31883 is a medium-severity vulnerability in Webinarpress, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2025-04-01.

How severe is CVE-2025-31883?

Medium severity. CVSS v3 base score is 5.9 out of 10.

XSS in Webinarpress

CVE-2025-31883

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

Affected products

Webinarpress
Wpwebinarsystem Webinarpress — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

audit@patchstack.com (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2025-31883?: CVE-2025-31883 is a medium-severity vulnerability in Webinarpress, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2025-04-01.
How severe is CVE-2025-31883?: Medium severity. CVSS v3 base score is 5.9 out of 10.