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Loading vulnerability database

BACK TO VEDB

CVE-2026-121763: WPMU DEV Hummingbird: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPMU DEV…

Name: CVE-2026-121763: WPMU DEV Hummingbird: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPMU DEV…
Creator: Rapid7
Published: 2026-11-09T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-121763, CVSS 6.5

REQUEST DEMO

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPMU DEV Hummingbird hummingbird-performance allows Stored XSS.This issue affects Hummingbird: from n/a through 3.21.2.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L)

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CVE details

CVSS v4 ScoreN/A

CVSS v3 Score

6.5 Medium

EPSS ScoreN/A

EPSS PercentileN/A

In CISA KEV CatalogueFalse

Published

Nov 9, 2026

References

MITRE ↗

MDR Buyer's Guide

Global Threat Landscape Report