PT-2025-12872 · WordPress · Ultimate Blocks

Peter Thaleikis · Published 2025-03-26 · Updated 2025-03-26 · CVE-2025-1703

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Ultimate Blocks plugin for WordPress versions up to and including 3.2.7

Description The issue is related to Stored Cross-Site Scripting via the content parameter, caused by insufficient input sanitization and output escaping. This allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts in pages, which will execute when a user accesses an injected page.

Recommendations For Ultimate Blocks plugin for WordPress versions up to and including 3.2.7, update to a version later than 3.2.7 to resolve the issue. As a temporary workaround, consider restricting access to the content parameter to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-1703

Affected Products

Ultimate Blocks

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2025-1703 · Security Note
• https://t.me/cvedetector/21156 · Telegram Post
• https://t.me/cvetracker/19949 · Telegram Post
• https://wordpress.org/plugins/ultimate-blocks/#developers · Note
• https://plugins.trac.wordpress.org/changeset/3260377 · Note
• https://t.me/cvenotify/116290 · Telegram Post
• https://plugins.trac.wordpress.org/browser/ultimate-blocks/trunk/src/extensions/responsive-control/class-responsive-control.php#L46 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/a2520d98-3cee-4431-bf9c-b2fd01a584ce?source=cve · Note
• https://twitter.com/CVEnew/status/1904833320074064026 · Twitter Post
• https://plugins.trac.wordpress.org/changeset/3260377/ultimate-blocks/trunk/src/extensions/responsive-control/class-responsive-control.php · Note