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Sticky Chat Widget CVE-2026-73187

| EUVDEUVD-2026-60938 CRITICAL
SQL Injection (CWE-89)
2026-08-18 Patchstack GHSA-m8fg-jj39-vp5m
9.3
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) PRIMARY
9.3 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
vuln.today AI
8.2 HIGH

Unauthenticated remote SQLi gives AV:N/AC:L/PR:N/UI:N with high confidentiality (C:H) from database read; I:L for possible injection writes, A:N and S:N since no proven impact on a separate system.

3.1 AV:N/AC:L/PR:N/UI:N/S:N/C:H/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
Low

Lifecycle Timeline

2
Analysis Generated
Aug 18, 2026 - 15:12 vuln.today
CVE Published
Aug 18, 2026 - 14:00 cve.org
CRITICAL 9.3

DescriptionCVE.org

Unauthenticated SQL Injection in Sticky Chat Widget <= 1.4.2 versions.

AnalysisAI

SQL injection in the Sticky Chat Widget WordPress plugin (by gingerplugins) affects all versions up to and including 1.4.2, allowing remote unauthenticated attackers to inject arbitrary SQL and read sensitive database contents. Rated CVSS 9.3 with a scope-changed vector, it requires no authentication or user interaction, making it directly reachable on any site running the plugin. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify site running Sticky Chat Widget ≤1.4.2
Delivery
Send crafted HTTP request with SQL payload
Exploit
Injection executes in WordPress database query
Execution
Extract user hashes and secret keys
Impact
Escalate to admin account takeover

Vulnerability AssessmentAI

Exploitation No special conditions beyond the plugin being installed and active - remote unauthenticated exploitation against default configurations of any WordPress site running Sticky Chat Widget version 1.4.2 or earlier. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The signals point to a genuinely high-priority issue for anyone running the plugin: the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) confirms remote, low-complexity, unauthenticated exploitation with no user interaction, and CWE-89 with C:H means full database read exposure. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker identifies a target WordPress site running Sticky Chat Widget ≤1.4.2 and sends a single crafted HTTP request to the plugin's vulnerable endpoint with a malicious SQL payload in a chat/widget parameter. Because no authentication or user interaction is required (AV:N/PR:N/UI:N), the injected query executes against the WordPress database, letting the attacker extract administrator password hashes, session tokens, or secret keys. …
Remediation No vendor-released patch version is identified in the available data - the advisory lists 1.4.2 and earlier as vulnerable without naming a fixed release, so administrators should monitor the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/sticky-chat-widget/vulnerability/wordpress-sticky-chat-widget-plugin-1-4-2-sql-injection-vulnerability) and the WordPress plugin repository for an update beyond 1.4.2 and upgrade as soon as one is published. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify and disable the Sticky Chat Widget plugin on all WordPress instances (versions ≤1.4.2) using plugin scanning tools, or take affected sites offline. …

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CVE-2026-73187 vulnerability details – vuln.today

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