---
id: CVE-2026-83545
title: >-
  The CoolClock WordPress plugin before 4.3.8 does not properly escape a custom
  skin setting before outputting it inside an inline script, allowing users with
  contributor-level access and above to inject arbitrary JavaScript that
  executes …
summary: >-
  The CoolClock WordPress plugin before 4.3.8 does not properly escape a custom
  skin setting before outputting it inside an inline script, allowing users with
  contributor-level access and above to inject arbitrary JavaScript that
  executes …
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
product: CoolClock
affected:
  - CoolClock < 4.3.8
published: '2026-09-11'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T17:35:21.440'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-83545'
references:
  - url: 'https://wpscan.com/vulnerability/d331d834-08f7-46e2-859a-7b797213ad0b/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T10:04:21.489220Z'
epss: 0.00235
epssPercentile: 0.14798
ingestedAt: '2026-09-11T16:45:47.924Z'
---

## Overview

The CoolClock WordPress plugin before 4.3.8 does not properly escape a custom skin setting before outputting it inside an inline script, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes when the content is viewed.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.