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Status published
Medium
CVE-2025-49929
WordPress Ultimate Blocks plugin <= 3.3.6 - Cross Site Scripting (XSS) vulnerability
Vulnerability Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ultimate Blocks Ultimate Blocks ultimate-blocks allows Stored XSS.This issue affects Ultimate Blocks: from n/a through <= 3.3.6.
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:
- zaim | Patchstack Bug Bounty Program
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Affected Vendor
Ultimate Blocks
View all reports →Affected Software
Ultimate Blocks
Vulnerable Versions:
0
Timeline
Official Publish:
October 22nd, 2025
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