PT-2026-4581 · WordPress · Set Bulk Post Categories

Ibnu + 1 · Published 2026-01-24 · Updated 2026-01-24 · CVE-2026-1081

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Set Bulk Post Categories plugin for WordPress versions up to and including 1.1

Description The plugin is susceptible to Cross-Site Request Forgery (CSRF) due to the absence of nonce validation in the bulk category update functionality. This allows unauthenticated attackers to modify post categories in bulk by deceiving a site administrator into performing an action, such as clicking a malicious link.

Recommendations Update the Set Bulk Post Categories plugin to a version beyond 1.1.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-1081

Affected Products

Set Bulk Post Categories

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-1081 · Security Note
• https://twitter.com/CVEnew/status/2014995780474692048 · Twitter Post
• https://plugins.trac.wordpress.org/browser/set-bulk-post-categories/trunk/set-bulk-categories.php#L36 · Note
• https://twitter.com/VulmonFeeds/status/2015006465757487159 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/9503f908-ead2-4c34-89b9-1e2348b90f3c?source=cve · Note
• https://plugins.trac.wordpress.org/browser/set-bulk-post-categories/tags/1.1/set-bulk-categories.php#L36 · Note
• https://t.me/CVEtracker/42922 · Telegram Post