PT-2026-33921 · WordPress · Llms.Txt

Kazuma Matsumoto · Published 2026-04-21 · Updated 2026-04-25 · CVE-2026-6712

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions LLMs.txt plugin for WordPress versions prior to 8.2.7

Description The plugin is subject to Stored Cross-Site Scripting due to insufficient input sanitization and output escaping in admin settings. Authenticated attackers with administrator-level permissions or higher can inject arbitrary web scripts into pages. These scripts execute when a user accesses the affected page. This issue specifically impacts multi-site installations and environments where unfiltered html has been disabled.

Recommendations Update the plugin to a version later than 8.2.6.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-6712

Affected Products

Llms.Txt

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-6712 · Security Note
• https://twitter.com/CVEnew/status/2046571847941288144 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/2ab86a42-2a8f-4cbc-a754-a3e307b1b73f?source=cve · Note
• https://twitter.com/atomicedgeWAF/status/2047926842942685209 · Twitter Post
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3482210%40website-llms-txt&new=3482210%40website-llms-txt&sfp_email=&sfph_mail= · Note