CVE-2026-8942Network attack vector

SEO settings modification via missing nonce validation

Published May 27, 2026 · Updated May 27, 2026

CSRF in lhughes33472 MetaMagic SEO Plugin 1.6 and earlier allows remote attackers to change SEO settings via a forged request. The metamagic_update_options function processes settings updates without correctly validating a nonce, allowing requests to enable or disable the plugin and toggle description or keyword meta-tag output. Exploitation requires a logged-in site administrator to perform an attacker-induced action, such as following a crafted link; the demonstrated consequence is limited to those SEO configuration changes.

CVSS severity4.3
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in lhughes33472 MetaMagic SEO Plugin 1.6 and earlier allows remote attackers to change SEO settings via a forged request. The metamagic_update_options function processes settings updates without correctly validating a nonce, allowing requests to enable or disable the plugin and toggle description or keyword meta-tag output. Exploitation requires a logged-in site administrator to perform an attacker-induced action, such as following a crafted link; the demonstrated consequence is limited to those SEO configuration changes.

The record

CVE
CVE-2026-8942
Published
May 27, 2026
Updated
May 27, 2026
Vendor
lhughes33472
Product
MetaMagic SEO Plugin
Classifications
CWE-352, CAPEC-62, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=0 <=1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

lhughes33472 · MetaMagic SEO Pluginversion=0 <=1.6

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1204.001User Execution: Malicious Link

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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