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CVE-2020-36701

Page Builder: KingComposer < 2.9.4 - Arbitrary File Upload

HIGH
8.8
CVSS Score
Published: June 7, 2023 at 01:51 AM UTC
Updated: June 17, 2026 at 03:15 AM UTC
2 products affected across 2 vendorsPage Builder KingcomposerTheme Page Builder Kingcomposer

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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Page Builder Kingcomposer· King Themewordpress-plugin
95%
v ≤ 2.9.3
Theme Page Builder Kingcomposer· Kingthemeswordpress-plugin
60%
v ≤ 2.9.3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Exploit
Source: [email protected]
https://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/
Patch
Source: [email protected]
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2320014%40kingcomposer&new=2320014%40kingcomposer&sfp_email=&sfph_mail=
Product
Source: [email protected]
https://wordpress.org/plugins/kingcomposer/#developers
Third Party Advisory
Source: [email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/45a62dd0-386c-41b3-b8dd-ced443da9f92?source=cve

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-434

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