---
id: CVE-2026-91830
title: >-
  Subscribe to Comments < 2.3.3 - Unauthenticated Subscription Management Key
  Disclosure via Forged Comment Cookie
summary: >-
  The Subscribe to Comments WordPress plugin before 2.3.3 does not sign or
  validate a cookie it trusts to identify a commenter, allowing unauthenticated
  attackers to disclose a subscriber's management key and silently alter that
  subscriber…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cvssSource: adp
cwe:
  - CWE-200
product: Subscribe to Comments
affected:
  - subscribe_to_comments < 2.3.3
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-16T14:42:35.482852Z'
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T14:49:22.052Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91830'
references:
  - url: 'https://wpscan.com/vulnerability/b2b1638a-f8af-49f7-86a6-a3eeea0526b1/'
tags:
  - cve.org
epss: 0.00145
epssPercentile: 0.03402
ingestedAt: '2026-10-16T07:01:11.493Z'
---

## Overview

The Subscribe to Comments WordPress plugin before 2.3.3 does not sign or validate a cookie it trusts to identify a commenter, allowing unauthenticated attackers to disclose a subscriber's management key and silently alter that subscriber's subscriptions.

## Affected

- `subscribe_to_comments < 2.3.3`

## Remediation

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