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Wise Chat vulnerabilities
Wise Chat has 6 known vulnerabilities in this database. The most recent published record is dated 6 Oct 2026.
- Known vulnerabilities
- 6
- Active installs
- 5,000+
- Latest version
- 3.4.1
- Last updated
- 16 Sep 2026
- Most recent
- 6 Oct 2026
No fixed version has been published yet, so consider disabling, removing or replacing the plugin until a safe release is available.
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Broken access control CVE-2026-39730 | High 7.1 | Up to 3.4.3 | No fixed version yet | 1 d ago |
| PHP object injection CVE-2026-81784 | High 8.1 | Up to 3.4.2 | No fixed version yet | 10 Sep 2026 |
| Cross-site scripting (XSS) CVE-2026-66636 | Medium 6.5 | Up to 3.4.3 | No fixed version yet | 18 Aug 2026 |
| Cross-site scripting (XSS) CVE-2025-3774 | High 7.2 | Up to 3.3.4 | Fixed in a later version (latest 3.4.1) | 17 Jun 2025 |
| Sensitive data exposure CVE-2024-13613 | High 7.5 | Up to 3.3.3 | Fixed in a later version (latest 3.4.1) | 17 May 2025 |
| Open redirect CVE-2019-6780 | Medium 6.1 | Before 2.7 | Fixed in 2.7 | 24 Jan 2019 |
Read the published descriptions
- CVE-2026-39730, 6 Oct 2026
- Missing Authorization vulnerability in Marcin Wise Chat wise-chat allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Wise Chat: from n/a through 3.4.3. CVE record
- CVE-2026-81784, 10 Sep 2026
- Deserialization of Untrusted Data vulnerability in Marcin Wise Chat wise-chat allows Object Injection.This issue affects Wise Chat: from n/a through 3.4.2. CVE record
- CVE-2026-66636, 18 Aug 2026
- Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcin Wise Chat wise-chat allows Stored XSS.This issue affects Wise Chat: from n/a through 3.4.3. CVE record
- CVE-2025-3774, 17 Jun 2025
- The Wise Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the X-Forwarded-For header in all versions up to, and including, 3.3.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. CVE record
- CVE-2024-13613, 17 May 2025
- The Wise Chat plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.3.3 via the 'uploads' directory. This makes it possible for unauthenticated attackers to extract sensitive data stored insecurely in the /wp-content/uploads directory which can contain file attachments included in chat messages. The vulnerability was partially patched in version 3.3.3. CVE record
- CVE-2019-6780, 24 Jan 2019
- The Wise Chat plugin before 2.7 for WordPress mishandles external links because rendering/filters/post/WiseChatLinksPostFilter.php omits noopener and noreferrer. CVE record
What to do if you run Wise Chat
If you run Wise Chat, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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