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PHP CVE-2026-22515

| EUVDEUVD-2026-15530 HIGH
PHP Remote File Inclusion (CWE-98)
2026-03-25 Patchstack GHSA-p82f-f9j2-69q4
8.1
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Identify vulnerable PHP include parameter
  2. Delivery
    Craft malicious file path with directory traversal
  3. Exploit
    Submit request to VegaDays vulnerable endpoint
  4. Execution
    PHP interpreter includes local file
  5. Impact
    Execute arbitrary code or read sensitive data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V5 - File Handling File inclusion prevention, allowlisting
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Command and Control

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

AncoraThemes VegaDays WordPress plugin version 1.2.0 and earlier. Remote unauthenticated attacker can exploit via crafted HTTP requests targeting vulnerable file inclusion parameters. Requires the plugin to be installed and activated; no victim interaction needed.

Impact

The actual risk posture of this vulnerability is moderate to high despite the absence of CVSS and EPSS scores. The attack vector is likely network-based with low complexity (typical of parameter-based LFI), requiring no authentication or user interaction. The technical impact is confidentiality loss—attackers can read arbitrary files—making this a serious information disclosure threat, particularly for WordPress deployments where wp-config.php contains database credentials. The lack of published CVSS, EPSS, or KEV status suggests this may be a recently discovered or less widely reported vulnerability; however, LFI vulnerabilities in WordPress themes are routinely exploited in the wild and are frequently automated by scanner tools. Organizations running VegaDays should prioritize patching over waiting for additional scoring metrics, as the vulnerability class and affected product type indicate real-world exploitability.

Exploit ScenarioDerived

An attacker discovers the VegaDays theme is active on a WordPress site and crafts a request to a vulnerable include/require parameter with a path traversal payload, such as 'index.php?page=../../../../wp-config.php'. The unvalidated parameter is passed directly to a PHP include statement, causing the server to load and parse wp-config.php, exposing the database credentials, authentication keys, and other sensitive configuration data in the response or server logs. The attacker then uses the leaked database credentials to directly access the WordPress database, escalating the attack to account creation, data exfiltration, or malware injection.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 25, 2026

A Local File Inclusion (LFI) vulnerability exists in AncoraThemes VegaDays WordPress theme through version 1.2.0, allowing improper control of filenames in PHP include/require statements. Attackers can leverage this vulnerability to read arbitrary files from the affected server, potentially disclosing sensitive configuration files, database credentials, and other confidential data. While no CVSS score or EPSS data is currently available and KEV status is unknown, the vulnerability is classified as an information disclosure issue with a straightforward exploitation path typical of LFI vulnerabilities in WordPress themes.

RemediationAI

Immediately upgrade AncoraThemes VegaDays to the latest patched version beyond 1.2.0 (consult the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/vegadays/vulnerability/wordpress-vegadays-theme-1-2-0-local-file-inclusion-vulnerability for the specific patch release). If an immediate upgrade is not feasible, disable or deactivate the VegaDays theme and switch to an alternative, security-audited WordPress theme. As an interim mitigation, implement Web Application Firewall (WAF) rules to block requests containing path traversal sequences (../, ..\, etc.) and PHP file paths in URL parameters, and restrict direct file access at the web server level using .htaccess or nginx configuration to deny access to sensitive files such as wp-config.php. Additionally, enforce the principle of least privilege for the web server process and monitor file access logs for suspicious read attempts.

Affected VersionsENISA

VegaDays n/a ≤≤ 1.2.0

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability stems from CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program), a classic web application flaw where user-supplied input is not properly sanitized before being passed to PHP's include(), require(), include_once(), or require_once() functions. The affected product, AncoraThemes VegaDays (identified via CPE cpe:2.3:a:ancorathemes:vegadays:*:*:*:*:*:*:*:*), is a WordPress theme that reportedly fails to validate or filter filename parameters, allowing attackers to traverse directory structures and load arbitrary local files. This is distinct from Remote File Inclusion (RFI) but equally dangerous, as it permits access to sensitive local resources such as wp-config.php, /etc/passwd, application source code, and other server-side files.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionCVE.org

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes VegaDays vegadays allows PHP Local File Inclusion.This issue affects VegaDays: from n/a through <= 1.2.0.

Executive ViewAI

Why It Matters

CVE-2026-22515 presents notable security risk rated CVSS 8.1. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: High
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.1%
Top 83% exploitable
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Local File Inclusion vulnerabilities occur when an application accepts user-controlled input to specify which file should be loaded or executed, typically through functions like PHP's `include()`, `require()`, or `fopen()`.

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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