---
id: CVE-2026-87828
title: >-
  The Seraphinite Accelerator WordPress plugin before 2.29.24 does not perform a
  capability check on one of its state-update AJAX actions, allowing
  authenticated users such as subscribers to write a malformed value that causes
  an uncaught …
summary: >-
  The Seraphinite Accelerator WordPress plugin before 2.29.24 does not perform a
  capability check on one of its state-update AJAX actions, allowing
  authenticated users such as subscribers to write a malformed value that causes
  an uncaught …
severity: medium
cvss: 5.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
product: Seraphinite Accelerator
affected:
  - seraphinite_accelerator < 2.29.24
published: '2026-09-16'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T13:16:56.040'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87828'
references:
  - url: 'https://wpscan.com/vulnerability/ce546b34-4383-4166-9b87-335a524f37e2/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-17T12:17:15.995799Z'
epss: 0.00242
epssPercentile: 0.15627
ingestedAt: '2026-09-16T06:51:06.255Z'
---

## Overview

The Seraphinite Accelerator WordPress plugin before 2.29.24 does not perform a capability check on one of its state-update AJAX actions, allowing authenticated users such as subscribers to write a malformed value that causes an uncaught error on every subsequent admin page load, making the entire admin area inaccessible to all administrators (denial of service).

## Remediation

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