CVE-2026-77784Network attack vector

Author-level metadata tampering via unchecked object identifiers

Published Sep 2, 2026 · Updated Sep 2, 2026

Authorization bypass in Rank Math SEO before 1.0.277 allows remote authenticated users to alter SEO metadata for objects they do not own. The mark_page_as AJAX handler accepts caller-controlled objectID and objectType values and writes pillar-content or robots metadata without checking ownership or edit permission. Author-level access and a valid Rank Math nonce are required; attackers can noindex others' content, removing it from generated sitemaps and search indexes.

CVSS severity2.7
Low
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Rank Math SEO before 1.0.277 allows remote authenticated users to alter SEO metadata for objects they do not own. The mark_page_as AJAX handler accepts caller-controlled objectID and objectType values and writes pillar-content or robots metadata without checking ownership or edit permission. Author-level access and a valid Rank Math nonce are required; attackers can noindex others' content, removing it from generated sitemaps and search indexes.

The record

CVE
CVE-2026-77784
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
Rank Math SEO
Product
Rank Math SEO
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 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 <1.0.277

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Rank Math SEO · Rank Math SEOversion=0 <1.0.277

Published CVSS scores

2.7CISA ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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