XSS in Fastbots
CVE-2026-6800
The FastBots plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Fastbots — versions 0
Weakness classification (CWE)
References
- plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/tags/1.0.12/fastbots.php
- plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/tags/1.0.12/settings-pa…
- plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/trunk/fastbots.php
- plugins.trac.wordpress.org/browser/fastbots-ai-chatbots/trunk/settings-page.php
- www.wordfence.com/threat-intel/vulnerabilities/id/b861e82a-dbff-491d-8a0a-1bfb9…
Frequently asked questions
- What is CVE-2026-6800?
- CVE-2026-6800 is a medium-severity vulnerability in Fastbots, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-05-12.
- How severe is CVE-2026-6800?
- Medium severity. CVSS v3 base score is 4.4 out of 10.