PT-2025-43193 · Ultimate Blocks · Ultimate Blocks

Zaim · Published 2025-10-22 · Updated 2025-11-18 · CVE-2025-49929

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Ultimate Blocks versions through 3.3.6

Description The software contains a flaw related to improper input handling during web page creation, which can lead to Cross-site Scripting (XSS). This allows for the injection of malicious scripts into web pages viewed by other users. The issue is a Stored XSS, meaning the malicious script is persistently stored on the target server.

Recommendations Update to a version later than 3.3.6.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-49929

Affected Products

Ultimate Blocks

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2025-49929 · Security Note
• https://vdp.patchstack.com/database/Wordpress/Plugin/ultimate-blocks/vulnerability/wordpress-ultimate-blocks-plugin-3-3-6-cross-site-scripting-xss-vulnerability?_s_id=cve · Note
• https://twitter.com/CVEnew/status/1990792019745386807 · Twitter Post
• https://vdp.patchstack.com/database/Wordpress/Plugin/ultimate-blocks/vulnerability/wordpress-ultimate-blocks-plugin-3-3-6-cross-site-scripting-xss-vulnerability · Note