CVE-2026-121763mediumCWE-79

CVE-2026-121763: medium-severity vulnerability in WPMU DEV Hummingbird

WordPress Hummingbird plugin <= 3.21.2 - Cross Site Scripting (XSS) vulnerability

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.2%
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:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Affected products
WPMU DEV · Hummingbird