What is the CVSS score of CVE-2026-1405?

CVE-2026-1405 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of WordPress are affected by CVE-2026-1405?

A critical vulnerability in the Slider Future WordPress plugin allows attackers to upload malicious files without restrictions, potentially leading to complete website compromise and data breach.

Is there a public PoC exploit available for CVE-2026-1405?

Yes, a public proof-of-concept exploit is available for CVE-2026-1405. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2026-1405?

Within 24 hours: Identify all WordPress instances running Slider Future plugin and document affected systems. Within 7 days: Disable the Slider Future plugin across all environments or remove it entirely if not essential to operations. Within 30 days: Evaluate alternative slider plugins with active security records, conduct full security audit of affected WordPress instances for signs of compromise, and implement file upload restrictions at the application and WAF level.

WordPress CVE-2026-1405

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2026-02-19 security@wordfence.com

WordPress RCE

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:03 vuln.today

CVE Published

Feb 19, 2026 - 07:17 nvd

CRITICAL 9.8

DescriptionCVE.org

The Slider Future plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'slider_future_handle_image_upload' function in all versions up to, and including, 1.0.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

AnalysisAI

Arbitrary file upload in Slider Future WordPress plugin.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send POST request to upload endpoint

Exploit

Bypass missing file type validation

Execution

Upload malicious PHP file

Impact

Execute arbitrary code on server

Access

Send POST request to upload endpoint

Exploit

Bypass missing file type validation

Execution

Upload malicious PHP file

Impact

Execute arbitrary code on server

Vulnerability AssessmentAI

Exploitation	Slider Future plugin versions ≤1.0.5 installed and activated. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 9.8. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Upload web shell.
Remediation	Update plugin. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all WordPress instances running Slider Future plugin and document affected systems. …

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-1405 vulnerability details – vuln.today

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WordPress CVE-2026-1405

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Unlock full vulnerability intelligence

Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

More from same product – last 7 days

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External POC / Exploit Code