---
id: CVE-2026-115673
title: >-
  Anti-Spam by CleanTalk < 6.91 - Unauthenticated Stored XSS via Comment Author
  Email
summary: >-
  The Anti-Spam, Spam FireWall by CleanTalk WordPress plugin before 6.91 does
  not escape a commenter-supplied value before outputting it on an
  administrative spam-review screen, allowing unauthenticated users to inject
  arbitrary web script…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: adp
cwe:
  - CWE-79
product: 'Anti-Spam, Spam FireWall by CleanTalk'
affected:
  - anti-spam_spam_firewall_by_cleantalk < 6.91
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-06T11:47:37.723399Z'
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T12:00:25.306Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115673'
references:
  - url: 'https://wpscan.com/vulnerability/087d91ac-2158-4f9b-8fab-4d17b14a7053/'
tags:
  - cve.org
ingestedAt: '2026-11-06T06:46:27.272Z'
epss: 0.00267
epssPercentile: 0.18929
---

## Overview

The Anti-Spam, Spam FireWall by CleanTalk WordPress plugin before 6.91 does not escape a commenter-supplied value before outputting it on an administrative spam-review screen, allowing unauthenticated users to inject arbitrary web scripts that execute in the browser of an administrator who reviews flagged comments.

## Affected

- `anti-spam_spam_firewall_by_cleantalk < 6.91`

## Remediation

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