CVE-2026-27986

HIGH
2026-03-05 [email protected]
8.1
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
CVE Published
Mar 05, 2026 - 06:16 nvd
HIGH 8.1

Tags

PHP Lfi

Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX OsTende ostende allows PHP Local File Inclusion.This issue affects OsTende: from n/a through <= 1.4.3.

Analysis

ThemeREX OsTende versions up to 1.4.3 contain a local file inclusion vulnerability in its PHP file handling that allows unauthenticated attackers to read arbitrary files on the server. The vulnerability stems from improper validation of filename parameters in include/require statements, enabling attackers to access sensitive configuration files and application data. …

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Remediation

Within 24 hours: Identify all instances of OsTende theme across your WordPress environments and isolate affected systems from production traffic if possible. Within 7 days: Implement WAF rules to block malicious file inclusion patterns and apply input validation filters to theme parameters; consider temporary theme deactivation if business operations allow. …

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Priority Score

41
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +40
POC: 0

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CVE-2026-27986 vulnerability details – vuln.today
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