CVE-2025-1703: Ultimate Blocks <= 3.2.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via content Parameter
First published: Wed Mar 26 2025(Updated: )
The Ultimate Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘content’ parameter in all versions up to, and including, 3.2.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ultimate Blocks | <=3.2.7 |
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Reference Links
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a2520d98-3cee-4431-bf9c-b2fd01a584ce?source=cve
- https://plugins.trac.wordpress.org/browser/ultimate-blocks/trunk/src/extensions/responsive-control/class-responsive-control.php#L46
- https://wordpress.org/plugins/ultimate-blocks/#developers
- https://plugins.trac.wordpress.org/changeset/3260377
- https://plugins.trac.wordpress.org/changeset/3260377/ultimate-blocks/trunk/src/extensions/responsive-control/class-responsive-control.php
Frequently Asked Questions
What is the severity of CVE-2025-1703?
CVE-2025-1703 is considered a high-severity vulnerability due to its impact on website security through Stored Cross-Site Scripting.
Who is affected by CVE-2025-1703?
CVE-2025-1703 affects all versions of the Ultimate Blocks plugin for WordPress up to and including 3.2.7.
How do I fix CVE-2025-1703?
To fix CVE-2025-1703, update the Ultimate Blocks plugin to the latest version that addresses this vulnerability.
What type of vulnerability is CVE-2025-1703?
CVE-2025-1703 is classified as a Stored Cross-Site Scripting (XSS) vulnerability.
Who can exploit CVE-2025-1703?
Authenticated attackers with Contributor or higher roles can exploit CVE-2025-1703 due to insufficient input sanitization.
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/references
- agent/author
- agent/source
- agent/weakness
- agent/severity
- agent/type
- agent/description
- agent/first-publish-date
- agent/event
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/ultimate blocks
- canonical/ultimate blocks