Wise Chat <= 2.6.3 — Reverse Tabnabbing
CVE-2019-6780Published · Updated Action summary
Affected: <2.7Update to 2.7 or newer
All remediation steps- Severity
- Medium6.1
- CVSS
- 6.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:RUser interaction- Required
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-20 Improper Input Validation
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Wise Chat wise-chat
- Affected< 2.7
- Patched in2.7
Update to 2.7 or newer.
You are affected if you run < 2.7. Version 2.7 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Wise Chat.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.7, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Wise Chat to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to MTK (Muhammad Talha Khan).
The Wise Chat plugin for WordPress is vulnerable to Reverse Tabnabbing in versions up to, and including, 2.6.3. This is due to mishandling of external links due to omitting noopener and noreferrer. This makes it possible for a chat-using attacker to provide a link that opens a new tab while silently redirecting the original - this can be used to redirect them to a phishing site on the original tab.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Wise Chat
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Missing Authorization ≤3.4.3Update to 3.4.4 | CVE-2026-39730 | |
| High8.1 | Unauthenticated PHP Object Injection ≤3.4.2Update to 3.4.3 | CVE-2026-81784 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤3.4.1Update to 3.4.2 | CVE-2026-66636 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via X-Forwarded-For Header ≤3.3.4Update to 3.3.5 | CVE-2025-3774 | |
| High7.5 | Unauthenticated Sensitive Information Exposure Through Unprotected Directory ≤3.3.2Update to 3.3.4 | CVE-2024-13613 |
- Medium4.3Missing Authorization
≤3.4.3Update to 3.4.4
- High8.1Unauthenticated PHP Object Injection
≤3.4.2Update to 3.4.3
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤3.4.1Update to 3.4.2
- High7.2Unauthenticated Stored Cross-Site Scripting via X-Forwarded-For Header
≤3.3.4Update to 3.3.5
- High7.5Unauthenticated Sensitive Information Exposure Through Unprotected Directory
≤3.3.2Update to 3.3.4
Timeline
CVE published
Severity medium, CVSS 6.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.