The Chat Help – Click to Chat Button & Form plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.1.3 via the REST API endpoints /wp-json/chat-help/v1/leads and /wp-json/chat-help/v1/leads/{id}. This is due to the plugin not performing any authentication and authorization checks. This makes it possible for unauthenticated attackers to extract sensitive data including customer names, email addresses, phone numbers, WhatsApp messages, complete geolocation data (IP addresses, city, country, ISP, coordinates), device fingerprinting information (browser, OS, screen resolution), and WordPress account credentials (user IDs, usernames, emails, names) for logged-in users who submit forms.
CVE-2026-15291
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-10. a secondary CVSS source baseline 7.5; 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
- 7.5
- EG Score
- 7.5(high)
- EPSS
- 37.6%
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 10, 2026
References (6)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L149
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L157
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L207
- security@wordfencehttps://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L234
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3394141%40chat-help%2Ftrunk&old=3390862%40chat-help%2Ftrunk&sfp_email=&sfph_mail=
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/91654765-6631-4eb4-9971-32b7db7933e1?source=cve
Vendor Advisories for CVE-2026-15291(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 30× in last 7d / 30× 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.
- 2026-07-15 19:57 UTCEG score recompute
- 2026-07-15 19:57 UTCGHSA enrichment
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 07:43 UTCEG score recompute
- 2026-07-15 07:43 UTCGHSA enrichment
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-14 19:27 UTCEG score recompute
- 2026-07-14 19:27 UTCGHSA enrichment
- 2026-07-14 07:13 UTCEG score recompute
- 2026-07-14 07:13 UTCGHSA enrichment
- 2026-07-13 22:30 UTCEPSS rescore
- 2026-07-13 19:00 UTCEG score recompute
- 2026-07-13 19:00 UTCGHSA enrichment
- 2026-07-13 06:46 UTCEG score recompute
- 2026-07-13 06:46 UTCGHSA enrichment
- 2026-07-13 06:12 UTCEPSS rescore
- 2026-07-12 18:32 UTCEG score recompute
- 2026-07-12 18:32 UTCGHSA enrichment
- 2026-07-12 06:16 UTCEG score recompute
- 2026-07-12 06:16 UTCGHSA enrichment
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 17:59 UTCEG score recompute
- 2026-07-11 17:59 UTCGHSA enrichment
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-11 05:45 UTCEG score recompute
Show 5 moreShow fewer
- 2026-07-11 05:45 UTCGHSA enrichment
- 2026-07-10 17:31 UTCEG score recompute
- 2026-07-10 17:31 UTCGHSA enrichment
- 2026-07-10 05:16 UTCEG score recompute
- 2026-07-10 05:13 UTCMITRE cvelistV5first tracked
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Same CWE
10 shownCWE-862
Frequently asked(5)
What is CVE-2026-15291?
When was CVE-2026-15291 disclosed?
Is CVE-2026-15291 actively exploited?
What is the CVSS score of CVE-2026-15291?
How do I remediate CVE-2026-15291?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-15291
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