A SQL injection issue in the gVectors wpDiscuz plugin 5.3.5 and earlier for WordPress allows remote attackers to execute arbitrary SQL commands via the order parameter of a wpdLoadMoreComments request. (No 7.x versions are affected.)
CVE-2020-13640 is a critical severity with CVSS 9.8 SQL Injection issue affecting the Plugin Comments – wpDiscuz. It affects Versions before 5.3.6 and is fixed in 5.3.6.
Use the related hub and response guides to connect this CVE-2020-13640 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2020-13640 is tracked for the Plugin Comments – wpDiscuz as critical severity with CVSS 9.8. The affected range is Versions before 5.3.6. Update Comments – wpDiscuz to 5.3.6 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions before 5.3.6.
Confirm Comments – wpDiscuz is updated to 5.3.6 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
wpdiscuz
View on wordpress.org
|
| CVE | CVE-2020-13640 |
| Patched Versions |
5.3.6
|
| Affected Versions |
Versions before 5.3.6
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Comments – wpDiscuz <= 7.6.24 - Authentication Bypass via WordPress.com OAuth provider
Comments - wpDiscuz 7.0 - 7.0.4 - Unauthenticated Arbitrary File Upload leading to Remote Code Execution
Comments – wpDiscuz <= 7.6.39 - Unauthenticated Authentication Bypass Through Account Takeover
wpDiscuz <= 7.6.11 - Unauthenticated Stored Cross-Site Scripting via Comment Uploaded Image Filename
Comments – wpDiscuz <= 7.6.18 - Authenticated (Contributor+) Stored Cross-Site Scripting
wpDiscuz <= 7.6.15 - Authenticated (Author+) Stored Cross-Site Scripting via Uploaded Image Alternative Text
wpDiscuz <= 7.6.3 - Missing Authorization via AJAX actions
Comments – wpDiscuz <= 7.4.2 - Insecure Direct Object References
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