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Ninja Tables EUVDEUVD-2026-85190

| CVE-2026-86612 MEDIUM
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)
2026-09-23 WPScan GHSA-rhgj-339r-2wcp
5.6
CVSS 3.1 · Vendor: WPScan
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Severity by source

Vendor (WPScan) PRIMARY
5.6 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
vuln.today AI
5.6 MEDIUM

Unauthenticated network form submission (PR:N/AV:N) but gated on a non-default shortcode-expansion configuration (AC:H); shortcode injection yields limited C/I and page-breakage A:L, no scope change.

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

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

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

Lifecycle Timeline

4
Metadata Corrected
Sep 23, 2026 - 11:40 vuln.today
tag: PHP added
Patch available
Sep 23, 2026 - 11:17 EUVD
Analysis Generated
Sep 23, 2026 - 11:08 vuln.today
CVE Published
Sep 23, 2026 - 10:11 cve.org
MEDIUM 5.6

DescriptionCVE.org

The Ninja Tables WordPress plugin before 5.2.17 does not restrict shortcode expansion to administrator-authored table rows which, in a non-default configuration, allows unauthenticated users to have arbitrary shortcodes executed on a public page, and to permanently break that page, by submitting an ordinary form entry.

AnalysisAI

Arbitrary shortcode execution in the WordPress plugin Ninja Tables before 5.2.17 lets an unauthenticated visitor execute arbitrary shortcodes and permanently break a public page by submitting an ordinary form entry, provided the site is running a non-default configuration in which user-submitted rows are rendered with shortcode expansion. Affected sites require no authentication and no victim interaction (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L, score 5.6); default installations do not expand shortcodes in non-administrator-authored rows and are therefore not exposed, which is why the vendor rated attack complexity as High. …

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Attack ChainAIDerived

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Vulnerability AssessmentAI

Exploitation Exploitation requires the site to run Ninja Tables before 5.2.17 AND a specific non-default configuration in which table rows can be populated by user-submitted form entries and those non-administrator-authored rows are rendered with shortcode expansion on a public page. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a modest-severity issue whose real-world priority is bounded by a non-default configuration requirement. … 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 Vendor-released patch: upgrade Ninja Tables to 5.2.17 or later, which is the version boundary identified as containing the fix; this is the primary and preferred remediation and applies to every site running an earlier release, even those not currently using the affected configuration. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-85190 vulnerability details – vuln.today

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