CVE-2026-81778

Received Received - Intake

Subscriber XSS in Kalles Addons Plugin

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: Patchstack

Description

Subscriber Cross Site Scripting (XSS) in Kalles Addons <= 1.0.6 versions.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-31

Last Modified

2026-08-31

Generated

2026-09-01

AI Q&A

2026-09-01

EPSS Evaluated

N/A

NVD

CVE-2026-81778

Affected Vendors & Products

Vendor	Product	Version / Range
kalles	addons	to 1.0.6 (inc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This is a Subscriber Cross Site Scripting (XSS) vulnerability found in Kalles Addons plugin versions up to and including 1.0.6. XSS allows attackers to inject malicious scripts into web pages viewed by other users. In this case, the vulnerability can be exploited by a subscriber-level user to inject scripts that execute in the context of other users' browsers.

Impact Analysis

If you are a user of a website using a vulnerable version of Kalles Addons, an attacker with subscriber access could steal your session cookies, redirect you to malicious sites, or perform actions on your behalf without your knowledge. This could lead to account takeover, data theft, or unauthorized actions on the website.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, which may violate GDPR's data protection requirements or HIPAA's safeguards for protected health information. Organizations using the vulnerable plugin may face compliance violations, legal penalties, and reputational damage if user data is compromised through this XSS flaw.

Mitigation Strategies

Update Kalles Addons to the latest version to patch the Subscriber Cross Site Scripting (XSS) vulnerability. If an update is not available, consider disabling the plugin temporarily until a fix is released.

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