What is the CVSS score of CVE-2026-1083?

CVE-2026-1083 has a CVSS 3.1 base score of 4.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of WordPress are affected by CVE-2026-1083?

Organizations using Appointment Hour Booking - Booking Calendar should be aware of moderate risk from CVE-2026-1083, a cross-site scripting vulnerability rated CVSS 4.4.

How to fix or mitigate CVE-2026-1083?

Within 30 days: Identify affected systems running for WordPress is vulnerable to Stored Cross-Site Scripting v and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

WordPress CVE-2026-1083

MEDIUM

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

2026-01-28 security@wordfence.com

WordPress XSS

4.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.4 MEDIUM

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 28, 2026 - 06:15 nvd

MEDIUM 4.4

DescriptionCVE.org

The Appointment Hour Booking - Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form field configuration parameters in all versions up to, and including, 1.5.60 due to insufficient input sanitization and output escaping on the 'Min length/characters' and 'Max length/characters' field configuration values. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the form builder interface. This only affects multi-site installations and installations where unfiltered_html has been disabled.

AnalysisAI

The Appointment Hour Booking plugin for WordPress through version 1.5.60 allows administrators to inject persistent JavaScript into the form builder interface through inadequately sanitized field configuration parameters. Exploitation requires high-level authenticated access and affects only multisite installations or those with unfiltered HTML disabled. Injected scripts execute in the context of other users accessing the form builder, enabling credential theft or unauthorized actions.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). The Appointment Hour Booking – Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form field configuration parameters in all versions up to, and including, 1.5.60 due to insufficient input sanitization and output escaping on the 'Min length/characters' and 'Max length/characters' field configuration values. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute w

Affected ProductsAI

Component: form field configuration.

RemediationAI

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