What is the CVSS score of CVE-2026-1866?

CVE-2026-1866 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of WordPress are affected by CVE-2026-1866?

WordPress installations using the Name Directory plugin (versions ≤1.32.0) are vulnerable to stored cross-site scripting attacks that could allow attackers to inject malicious code into your website.

How to fix or mitigate CVE-2026-1866?

Within 24 hours: Audit all WordPress installations to identify those running Name Directory plugin ≤1.32.0 and document exposure scope. Within 7 days: Disable the Name Directory plugin on all affected systems if business-critical functions allow, or restrict plugin access to authenticated administrators only via WAF rules. Within 30 days: Monitor vendor releases for a patched version and establish a testing/deployment plan for immediate application once available; consider alternative plugins if the vendor does not release a patch within 60 days.

WordPress CVE-2026-1866

HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-02-10 security@wordfence.com

WordPress XSS

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 10, 2026 - 10:15 nvd

HIGH 7.2

DescriptionCVE.org

The Name Directory plugin for WordPress is vulnerable to Stored Cross-Site Scripting via double HTML-entity encoding in all versions up to, and including, 1.32.0. This is due to the plugin's sanitization function calling html_entity_decode() before wp_kses(), and then calling html_entity_decode() again on output. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page via the 'name_directory_name' and 'name_directory_description' parameters in the public submission form granted they can trick the site administrator into approving their submission or auto-publish is enabled.

AnalysisAI

The Name Directory WordPress plugin through version 1.32.0 contains a stored cross-site scripting vulnerability in its sanitization logic that allows unauthenticated attackers to inject malicious scripts through the public submission form. Attackers can exploit this by submitting content with double-encoded HTML entities that bypass security filters, and the injected scripts will execute when administrators or users view the affected pages if the submission is approved or auto-publish is enabled. This affects all installations of the vulnerable plugin versions with no patch currently available.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Name Directory (WordPress plugin). The Name Directory plugin for WordPress is vulnerable to Stored Cross-Site Scripting via double HTML-entity encoding in all versions up to, and including, 1.32.0. This is due to the plugin's sanitization function calling html_entity_decode() before wp_kses(), and then calling html_entity_decode() again on output. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page via the 'name_directory_n

Affected ProductsAI

Vendor: WordPress. Product: Name Directory (WordPress plugin).

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.