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Smart Marketing CVE-2026-81756

| EUVDEUVD-2026-68784 CRITICAL
SQL Injection (CWE-89)
2026-08-31 Patchstack GHSA-m3fp-q996-3vr3
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 with low complexity (AV:N/AC:L/PR:N/UI:N) enabling full DB read (C:H) and limited write via injection (I:L); scope kept Unchanged absent evidence of cross-component impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/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

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 31, 2026 - 21:00 vuln.today
CVE Published
Aug 31, 2026 - 20:30 cve.org
CRITICAL 9.3

DescriptionCVE.org

Unauthenticated SQL Injection in Smart Marketing SMS and Newsletters Forms <= 5.1.24 versions.

AnalysisAI

SQL injection in the E-goi 'Smart Marketing SMS and Newsletters Forms' WordPress plugin (versions 5.1.24 and earlier) lets unauthenticated remote attackers inject arbitrary SQL through a plugin input, per a Patchstack advisory. The CVSS 3.1 base score is 9.3 (AV:N/AC:L/PR:N/UI:N) with high confidentiality impact and a changed scope, meaning the site database can be read without credentials. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires only that a vulnerable version (<= 5.1.24) of the E-goi Smart Marketing SMS and Newsletters Forms plugin be installed and active on an internet-reachable WordPress site, with the vulnerable form/subscription endpoint accessible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The risk signals point to a genuinely serious, easily reachable issue rather than a paper-high CVSS: the vector is fully remote and unauthenticated with low attack complexity and no user interaction (AV:N/AC:L/PR:N/UI:N), and confidentiality impact is High, which is the classic profile of an exploitable data-exfiltration SQLi. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade the plugin to a version newer than 5.1.24; the advisory indicates 5.1.24 is the last vulnerable release, but no fixed version number is stated in the provided data, so confirm the exact patched release on the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/smart-marketing-for-wp/vulnerability/wordpress-smart-marketing-sms-and-newsletters-forms-plugin-5-1-24-sql-injection-vulnerability?_s_id=cve) or the WordPress.org plugin page before deploying. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Audit all WordPress instances for the E-goi Smart Marketing Forms plugin version 5.1.24 or earlier; immediately disable the plugin if present. …

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CVE-2026-81756 vulnerability details – vuln.today

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