Chaty Pro <= 3.5.5 - Authenticated (Subscriber+) SQL Injection via 'widget_id' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-6251
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-28 07:16:42 UTC
Updated2026-07-28 16:07:15 UTC
DescriptionThe Chaty Pro plugin for WordPress is vulnerable to Authenticated Time-Based Blind SQL Injection in versions up to and including 3.5.5. This is due to the fetch_custom_field() function in admin/class-admin-base.php retrieving the widget_id POST parameter via filter_input(INPUT_POST, ...) and directly concatenating the value into a raw SQL query in a numeric context without using $wpdb->prepare() or any integer casting. Additionally, the nonce verification check is performed after the SQL query has already executed, providing no protection against the injection. This makes it possible for authenticated attackers with subscriber-level access and above to inject arbitrary SQL commands, potentially leading to unauthorized extraction of sensitive database contents including user credentials and configuration data.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.002490000 probability, percentile 0.163230000 (date 2026-07-29)

Problem Types: CWE-89 | CWE-89 CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chaty Chaty Pro affected 3.5.5 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/chaty-pro/trunk/admin/class-admin-base.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/chaty-pro/tags/3.5.0/admin/class-admin-base.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/chaty-pro/trunk/admin/class-admin-base.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/582fa92d-8e52-49a9-94ce-f1b49... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/chaty-pro/tags/3.5.0/admin/class-admin-base.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: h0xilo (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-27T16:37:23.000ZDisclosed

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