CVE-2020-36701 json
Page Builder: KingComposer < 2.9.4 - Arbitrary File Upload
published 2023-06-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24143
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 22 mo ago
Exploit prediction
1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blog.nintechnet.com https://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- kingthemes Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset?sfp_email=&sfph_mail=&reponame=&old=2320014%40kingcomposer&new=2320014%40kingcomposer&sfp_email=&sf
patch
-
blog.nintechnet.com
/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/
exploit
-
wordfence.com
/threat-intel/vulnerabilities/id/45a62dd0-386c-41b3-b8dd-ced443da9f92?source=cve
third-party-advisory
-
wordpress.org
/plugins/kingcomposer/#developers
product
Sources
- CVE List CVE-2020-36701
- NVD CVE-2020-36701
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.