CVE-2022-38140Network attack vector

Authenticated arbitrary file upload

Published Nov 28, 2022 · Updated Apr 28, 2026

Unrestricted file upload in SEO Plugin by Squirrly SEO 12.1.10 and earlier allows remote authenticated users to upload arbitrary files. Published advisories do not identify the affected upload handler or disclose which validation operation accepts dangerous file types. Contributor-level WordPress access is required, and the established consequence is arbitrary file placement on the affected site's server.

CVSS severity8.8
High
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in SEO Plugin by Squirrly SEO 12.1.10 and earlier allows remote authenticated users to upload arbitrary files. Published advisories do not identify the affected upload handler or disclose which validation operation accepts dangerous file types. Contributor-level WordPress access is required, and the established consequence is arbitrary file placement on the affected site's server.

The record

CVE
CVE-2022-38140
Published
Nov 28, 2022
Updated
Apr 28, 2026
Vendor
Squirrly Limited
Product
SEO Plugin by Squirrly SEO
Classifications
CWE-434, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=12.1.10 changes=[{"at":"12.1.11","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Squirrly Limited · SEO Plugin by Squirrly SEOversion=n/a <=12.1.10 changes=[{"at":"12.1.11","status":"unaffected"}]

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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