What is the CVSS score of CVE-2026-28121?

CVE-2026-28121 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of PHP are affected by CVE-2026-28121?

A critical file inclusion vulnerability affects AncoraThemes Anderson plugin versions up to 1.4.2, allowing attackers to read arbitrary files from affected systems.

PHP CVE-2026-28121

Q: How to fix or mitigate CVE-2026-28121?

Within 24 hours: Inventory all systems running AncoraThemes Anderson and immediately disable the plugin/theme if not essential to operations. Within 7 days: Implement WAF rules to block suspicious file inclusion patterns (e.g., requests with PHP wrappers, directory traversal sequences) and apply network segmentation to isolate affected servers. Within 30 days: Either upgrade to a patched version when available, migrate to an alternative theme/plugin, or implement comprehensive file access controls and PHP configuration hardening (disable allow_url_include, restrict file operations).

HIGH

PHP Remote File Inclusion (CWE-98)

2026-03-05 audit@patchstack.com

PHP Information Disclosure LFI

8.1

CVSS 3.1

CVSS VectorNVD

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

Re-analysis Queued

Apr 22, 2026 - 21:37 vuln.today

cvss_changed

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 06:16 nvd

HIGH 8.1

DescriptionNVD

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Anderson andersonclinic allows PHP Local File Inclusion.This issue affects Anderson: from n/a through <= 1.4.2.

AnalysisAI

Local and remote file inclusion in AncoraThemes Anderson through version 1.4.2 enables attackers to read arbitrary files or execute malicious code on affected systems. The vulnerability stems from improper validation of file paths in PHP include/require statements, allowing unauthenticated attackers to manipulate input parameters over the network. …

RemediationAI

Within 24 hours: Inventory all systems running AncoraThemes Anderson and immediately disable the plugin/theme if not essential to operations. Within 7 days: Implement WAF rules to block suspicious file inclusion patterns (e.g., requests with PHP wrappers, directory traversal sequences) and apply network segmentation to isolate affected servers. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-28121 vulnerability details – vuln.today

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PHP CVE-2026-28121

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

Full analysis requires sign-in

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External POC / Exploit Code