PT-2026-33920 · WordPress · Llms.Txt

Kazuma Matsumoto · Published 2026-04-21 · Updated 2026-04-21 · CVE-2026-6711

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/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 Reflected Cross-Site Scripting is possible via the 'tab' parameter. The issue arises from the use of filter input() without a sanitization filter and insufficient output escaping, allowing unauthenticated attackers to inject arbitrary web scripts into pages that execute if an administrator is tricked into clicking a link.

Recommendations Update the plugin to a version later than 8.2.6. Avoid using the tab parameter in the affected plugin until the update is applied.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-6711

Affected Products

Llms.Txt

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-6711 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/f5af155b-b65e-4cb1-a748-fc0fc5c6176d?source=cve · Note
• 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
• https://twitter.com/CVEnew/status/2046571846934597720 · Twitter Post