CVE-2023-50833 - CVE House

Status published Medium CVE-2023-50833

WordPress Colibri Page Builder Plugin <= 1.0.239 is vulnerable to Cross Site Scripting (XSS)

6.5 CVSS

Vulnerability Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ExtendThemes Colibri Page Builder allows Stored XSS.This issue affects Colibri Page Builder: from n/a through 1.0.239.

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:

LVT-tholv2k (Patchstack Alliance)

References

https://patchstack.com/database/vulnerability/colibri-page-builder/wordpress-colibri-page-builder-plugin-1-0-239-cross-site-scripting-xss-vulnerability?_s_id=cve

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Affected Vendor

ExtendThemes

View all reports →

Affected Software

Colibri Page Builder

Vulnerable Versions:

Unknown

Timeline

Official Publish: December 21st, 2023

Last Modified: April 28th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

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

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