CVE-2020-36701
Page Builder: KingComposer < 2.9.4 - Arbitrary File Upload
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
The Page Builder: KingComposer plugin for WordPress is vulnerable to Arbitrary File Uploads in versions up to, and including, 2.9.3 via the 'process_bulk_action' function in the 'kingcomposer/includes/kc.extensions.php' file. This makes it possible for authenticated users with author level permissions and above to upload arbitrary files onto the server which can be used to execute code on the server.
| CWE | CWE-434 |
| Vendor | kingthemes |
| Product | page builder: kingcomposer – free drag and drop page builder by king-theme |
| Published | Jun 7, 2023 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
kingthemes / Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme
0 ≤ 2.9.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/45a62dd0-386c-41b3-b8dd-ced443da9f92?source=cve blog.nintechnet.com: https://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/ wordpress.org: https://wordpress.org/plugins/kingcomposer/#developers plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2320014%40kingcomposer&new=2320014%40kingcomposer&sfp_email=&sfph_mail=
Credits
Jerome Bruandet