Resource exhaustion in Seraphinite Accelerator

CVE-2026-87828

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).

Vulnerability class: DoS (Denial of Service)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (24.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-87828: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Seraphinite Accelerator

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-87828?
CVE-2026-87828 is a medium-severity vulnerability in Seraphinite Accelerator, classified under Uncontrolled Resource Consumption. CVSS score: 5.7/10. Published 2026-09-16.
How severe is CVE-2026-87828?
Medium severity. CVSS v3 base score is 5.7 out of 10.