Page Builder: KingComposer < 2.9.4 — Authorization Bypass due to Improper Access Control
CVE-2020-36700Published · Updated Action summary
Affected: ≤2.9.3Update to 2.9.4 or newer
All remediation steps- Severity
- High8.8
- CVSS
- 8.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-284 Improper Access Control
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme kingcomposer
- Affected≤ 2.9.3
- Patched in2.9.4
Update to 2.9.4 or newer.
You are affected if you run ≤ 2.9.3. Version 2.9.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.9.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Jerome Bruandet.
The Page Builder: KingComposer plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 2.9.3. This is due to a security nonce being leaked in the '/wp-admin/index.php' page. This makes it possible for authenticated attackers to change arbitrary WordPress options, delete arbitrary files/folders, and inject arbitrary content.
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 Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.5 | Authenticated Arbitrary Profile Creation and Stored Cross-Site Scripting ≤2.9.6No patch available | CVE-2021-25048 | |
| High8.8 | Open Redirect ≤2.9.6No patch available | CVE-2022-0165 | |
| Medium5.5 | Stored Cross-Site Scripting <2.9.4Update to 2.9.4 | CVE-2020-36709 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤2.9.4Update to 2.9.5 | CVE-2020-15299 | |
| High8.8 | Arbitrary File Upload ≤2.9.3Update to 2.9.4 | CVE-2020-36701 |
- High8.5Authenticated Arbitrary Profile Creation and Stored Cross-Site Scripting
≤2.9.6No patch available
- High8.8Open Redirect
≤2.9.6No patch available
- Medium5.5Stored Cross-Site Scripting
<2.9.4Update to 2.9.4
- Medium6.1Reflected Cross-Site Scripting
≤2.9.4Update to 2.9.5
- High8.8Arbitrary File Upload
≤2.9.3Update to 2.9.4
Timeline
CVE published
Severity high, CVSS 8.8
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.