CVE-2026-13731: quantumcloud wpbot – ai chatbot for live support, lead generation, ai services Cross-site Scripting
Vulnerability summary
CVE-2026-13731 is a high (CVSS 7.2) Cross-site Scripting vulnerability in quantumcloud wpbot – ai chatbot for live support, lead generation, ai services. EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.6% of scored vulnerabilities.
Timeline
- 01-07-2026PublishedVulnerability first disclosed.
- 01-07-2026Last modifiedVulnerability information updated.
Description
The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'conversation' parameter in all versions up to, and including, 8.4.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The AJAX nonce required to authenticate the save request is publicly emitted on every frontend page via wp_localize_script, making it freely obtainable by any anonymous visitor and removing any practical barrier to exploitation.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST7.2HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- wordfenceSource7.2HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.89%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.89% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Quantumcloud1 product
Wordpress1 product
- chatbot≤ 8.4.9 (fixed in 8.5.0)
2 vendors · 2 products