Medium severity6.5NVD Advisory· Published Nov 9, 2026· Updated Nov 9, 2026

CVE-2026-121763

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

WordPress/Hummingbirdllm-fuzzy
Range: <=3.21.2

Patches

Vulnerability mechanics

References

patchstack.com/database/wordpress/plugin/hummingbird-performance/vulnerability/wordpress-hummingbird-plugin-3-21-2-cross-site-scripting-xss-vulnerabilitynvd

News mentions

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