CVE-2026-18555: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots
The Better Messages plugin for WordPress up to version 2.15.22 is vulnerable to reflected Cross-Site Scripting (XSS) via the 'icn' parameter. This vulnerability allows unauthenticated attackers to inject malicious scripts that execute when a user interacts with crafted content, such as clicking a link. The issue arises from insufficient input sanitization and output escaping.
AI Analysis
Technical Summary
CVE-2026-18555 is a reflected Cross-Site Scripting vulnerability in the Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots WordPress plugin. The flaw exists in the handling of the 'icn' parameter in all versions up to and including 2.15.22, where input is not properly sanitized or escaped before being included in web pages. This enables unauthenticated attackers to inject arbitrary scripts that execute in the context of the victim's browser upon user interaction.
Potential Impact
Successful exploitation can lead to the execution of arbitrary scripts in the context of the victim's browser, potentially allowing attackers to steal sensitive information, perform actions on behalf of the user, or conduct phishing attacks. The vulnerability requires user interaction (e.g., clicking a malicious link) and affects confidentiality and integrity but does not impact availability.
Mitigation Recommendations
No official patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid interacting with untrusted links containing the 'icn' parameter and consider disabling or restricting the plugin if possible.
CVE-2026-18555: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots
Description
The Better Messages plugin for WordPress up to version 2.15.22 is vulnerable to reflected Cross-Site Scripting (XSS) via the 'icn' parameter. This vulnerability allows unauthenticated attackers to inject malicious scripts that execute when a user interacts with crafted content, such as clicking a link. The issue arises from insufficient input sanitization and output escaping.
CVSS v3.1
Score 6.1medium
Affected software
wordplus
Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18555 is a reflected Cross-Site Scripting vulnerability in the Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots WordPress plugin. The flaw exists in the handling of the 'icn' parameter in all versions up to and including 2.15.22, where input is not properly sanitized or escaped before being included in web pages. This enables unauthenticated attackers to inject arbitrary scripts that execute in the context of the victim's browser upon user interaction.
Potential Impact
Successful exploitation can lead to the execution of arbitrary scripts in the context of the victim's browser, potentially allowing attackers to steal sensitive information, perform actions on behalf of the user, or conduct phishing attacks. The vulnerability requires user interaction (e.g., clicking a malicious link) and affects confidentiality and integrity but does not impact availability.
Mitigation Recommendations
No official patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid interacting with untrusted links containing the 'icn' parameter and consider disabling or restricting the plugin if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-08-01T10:08:09.900Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa1f5555bf5e2cf50301ba
Added to database: 09/16/2026, 04:47:17 UTC
Last enriched: 09/16/2026, 05:01:47 UTC
Last updated: 09/16/2026, 05:06:42 UTC
Views: 5
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