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.
CVE-2026-13731
Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. a secondary CVSS source baseline 7.2; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(high)
- EPSS
- 15.1%
- KEV
- Not listed
Published
July 1, 2026
Last Modified
July 1, 2026
References (7)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/functions.php#L1811
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/reports/view/partials/view-single-chat.php#L148
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php#L509
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/includes/chat-sessions/wpbot-chat-sessions.php#L644
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chatbot/tags/8.4.9/qcld-wpwbot.php#L603
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3591600%40chatbot&new=3591600%40chatbot&sfp_email=&sfph_mail=
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/124f2b72-d8da-46ba-844f-e9cc01441702?source=cve
Vendor Advisories for CVE-2026-13731(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 31× in last 7d / 31× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 02:37 UTCEG score recompute
- 2026-07-07 02:37 UTCGHSA enrichment
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 13:47 UTCEG score recompute
- 2026-07-06 13:46 UTCGHSA enrichment
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 00:55 UTCEG score recompute
- 2026-07-06 00:55 UTCGHSA enrichment
- 2026-07-05 12:05 UTCEG score recompute
- 2026-07-05 12:05 UTCGHSA enrichment
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 23:15 UTCEG score recompute
- 2026-07-04 23:14 UTCGHSA enrichment
- 2026-07-04 10:24 UTCEG score recompute
- 2026-07-04 10:24 UTCGHSA enrichment
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-03 21:33 UTCEG score recompute
- 2026-07-03 21:33 UTCGHSA enrichment
- 2026-07-03 08:43 UTCEG score recompute
- 2026-07-03 08:43 UTCGHSA enrichment
- 2026-07-02 19:53 UTCEG score recompute
- 2026-07-02 19:53 UTCGHSA enrichment
- 2026-07-02 07:03 UTCEG score recompute
- 2026-07-02 07:03 UTCGHSA enrichment
Show 6 moreShow fewer
- 2026-07-01 18:12 UTCEG score recompute
- 2026-07-01 18:12 UTCGHSA enrichment
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 05:22 UTCEG score recompute
- 2026-07-01 05:20 UTCNVD updatefirst tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-13731?
When was CVE-2026-13731 disclosed?
Is CVE-2026-13731 actively exploited?
What is the CVSS score of CVE-2026-13731?
How do I remediate CVE-2026-13731?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-13731
Is Your Infrastructure Affected by CVE-2026-13731?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.