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CVE-2026-87828

Seraphinite Accelerator < 2.29.24 - Subscriber+ DoS via seraph_accel_State Update

Description

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).

Public exploit

An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit.

Show the exploits1

References tagged exploit1 reference

Timeline

  1. ID reserved

    By WPScan

  2. · 7 days later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-87828, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium5.7CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
NVDNVD · Deferred3.1Medium5.7CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.32% · top 75% of all CVEs (9 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.7.

Affected products

References

1

Sources

The same CVE in the primary databases and aggregators, to check against.

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[![CVE-2026-87828](https://cveledger.app/badge/CVE-2026-87828.svg)](https://cveledger.app/cve/CVE-2026-87828)

Record last updated .