CVE-2020-36709 - CVE House
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Status published Medium CVE-2020-36709

Page Builder: KingComposer < 2.9.4 - Stored Cross-Site Scripting

Vulnerability Description

The Page Builder: KingComposer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via via shortcode in versions before 2.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jerome Bruandet

References

More from kingthemes

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CVE-2020-36701
Page Builder: KingComposer < 2.9.4 - Arbitrary File Upload
High 8.8
CVE-2020-36700
Page Builder: KingComposer < 2.9.4 - Authorization Bypass due to Improper Access Control
High 8.8

Affected Vendor

Affected Software

Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme
Vulnerable Versions:
0

Timeline

Official Publish: June 7th, 2023
Last Modified: April 8th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact