CVE-2026-81807
Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via Chat Message Linkification
- State
- Published
- Severity
- 8.8 High
- Published
- Sep 2, 2026
- Updated
- Sep 2, 2026
- Reserved
- Aug 27, 2026
Description
The Simple Ajax Chat WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Simple Ajax ChatUnknown |
|
References
- https://wpscan.com/vulnerability/7aceefd5-aa09-4828-b375-6a62997fa0c2/exploitvdb-entrytechnical-description
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