CVE-2026-94166

WordPress UpSolution Core plugin < 9.4.1 - Cross Site Scripting (XSS) vulnerability

Published Oct 9, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UpSolution UpSolution Core us-core allows Reflected XSS.This issue affects UpSolution Core: from n/a before 9.4.1.

Remediation

Vendor Solution

Update the WordPress UpSolution Core plugin to the latest available version (at least 9.4.1).

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UpSolution UpSolution Core us-core allows Reflected XSS.This issue affects UpSolution Core: from n/a through 8.44. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UpSolution UpSolution Core us-core allows Reflected XSS.This issue affects UpSolution Core: from n/a before 9.4.1.
Title WordPress UpSolution Core plugin <= 8.44 - Cross Site Scripting (XSS) vulnerability WordPress UpSolution Core plugin < 9.4.1 - Cross Site Scripting (XSS) vulnerability
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UpSolution UpSolution Core us-core allows Reflected XSS.This issue affects UpSolution Core: from n/a through 8.44.
Title WordPress UpSolution Core plugin <= 8.44 - Cross Site Scripting (XSS) vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Nov 10, 2026, 1:50 PM
Reserved
Sep 21, 2026, 12:20 AM
Status
Deferred
Published
Oct 9, 2026, 10:16 AM
Modified
Nov 10, 2026, 2:17 PM