CVE-2026-24983
Received Received - Intake
Reflected XSS in UpSolution Core ≤ 8.41 Enables Code Injection

Publication date: 2026-03-25

Last updated on: 2026-04-23

Assigner: Patchstack

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 <= 8.41.
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Meta Information
Published
2026-03-25
Last Modified
2026-04-23
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-15
NVD
CVE-2026-24983
EUVD
EUVD-2026-15604
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
upsolution upsolution_core to 8.41 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a type of Cross-site Scripting (XSS) known as Reflected XSS. It occurs in UpSolution Core (versions up to 8.41) due to improper neutralization of input during web page generation. This means that malicious input is not properly sanitized before being included in web pages, allowing attackers to inject and execute malicious scripts in the context of a user's browser.

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in the browsers of users who visit affected web pages. This can lead to theft of sensitive information such as cookies or session tokens, unauthorized actions performed on behalf of the user, or redirection to malicious sites.

Detection Guidance

The provided resources do not include specific commands or methods to detect the CVE-2026-24983 vulnerability on your network or system.

Mitigation Strategies

To mitigate the CVE-2026-24983 vulnerability, immediately update the UpSolution Core WordPress plugin to version 8.42 or later, which contains the patch for this Cross Site Scripting issue.

Until the update can be applied, use Patchstack’s automatic mitigation rule to block attacks targeting this vulnerability.

If you are unable to update the plugin immediately, seek assistance from your hosting provider or web developer to apply temporary protections or mitigations.

Compliance Impact

The CVE-2026-24983 vulnerability is a Cross Site Scripting (XSS) issue that allows attackers to inject malicious scripts into affected websites, potentially compromising the confidentiality, integrity, and availability of data.

Such vulnerabilities can lead to unauthorized access or manipulation of user data, which may result in non-compliance with data protection regulations like GDPR and HIPAA that require safeguarding personal and sensitive information.

Therefore, if exploited, this vulnerability could negatively impact compliance with these common standards by exposing user data to attackers.

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