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CVE-2026-77788— Rank Math SEO < 1.0.277 - Author+ Arbitrary Post and User Metadata Overwrite via updateSchemas

Quick assessment

Affected
Unknown Rank Math SEO
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rank Math SEO 插件（WordPress）在 1.0.277 版本之前，未验证正在更新的元数据行是否归属于用户已被授权操作的对象。因此，拥有“作者（Author）”角色或更高权限的用户可以覆盖任意文章和用户元数据，包括那些属于更高权限用户的元数据。

AI Predicted 6.5 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1485 · Data Destruction
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I. Basic Information for CVE-2026-77788

Vulnerability Information
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Vulnerability Title
Rank Math SEO < 1.0.277 - Author+ Arbitrary Post and User Metadata Overwrite via updateSchemas
Source: CVE Program / CVE List V5
Vulnerability Description
The Rank Math SEO WordPress plugin before 1.0.277 does not verify that the metadata row being updated belongs to the object the user was authorised against, allowing users with the Author role and above to overwrite arbitrary post and user metadata, including that belonging to higher-privileged users.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Rank Math SEO 1.0.48 ~ 1.0.277 -

II. Public POCs for CVE-2026-77788

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III. Intelligence Information for CVE-2026-77788

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Vendor Advisories for CVE-2026-77788 (1)

Same Patch Batch · Unknown · 2026-09-02 · 41 CVEs total

CVE-2026-19453 JetBackup 3.1.7.9 - 3.1.23.3 - Subscriber+ Privilege Escalation via Restore Admin User Sel
CVE-2026-77783 Rank Math SEO < 1.0.277 - Unauthenticated Non-Public Post Schema and Content Disclosure
CVE-2026-77785 Rank Math SEO < 1.0.277 - Author+ Non-Public Post Content Disclosure via Abilities API
CVE-2026-77764 GamiPress < 7.9.9.6 - Subscriber+ Arbitrary User Points and Achievement Award via Watch-Vi
CVE-2026-77782 Rank Math SEO < 1.0.277.1 - Unauthenticated Password-Protected Post Content Disclosure via
CVE-2026-74927 MultiVendorX 5.0.13 - 5.0.14 - Unauthenticated Vendor PII and Payout Data Disclosure via s
CVE-2026-19116 WP User Frontend < 4.3.11 - Subscriber+ PHP Object Injection via Frontend Post Edit Form
CVE-2026-19251 Ultimate Member < 2.13.0 - Unauthenticated Unapproved Comment Disclosure via Profile Activ
CVE-2026-19704 Comments – wpDiscuz < 7.6.66 - Unauthenticated Comment Disclosure via SQLi
CVE-2026-19719 Social Media Share Buttons & Social Sharing Icons < 3.0.1 - Contributor+ Stored XSS via Po
CVE-2026-77784 Rank Math SEO < 1.0.277 - Author+ Robots and Pillar Content Meta Update on Non-Owned Objec
CVE-2026-19723 Social Media Share Buttons & Social Sharing Icons < 3.0.1 - Reflected XSS via Pin It Share
CVE-2026-15232 Appointment Booking Lite < 2.4.8 - Unauthenticated Arbitrary Reservation Deletion
CVE-2026-16966 Solace Extra < 1.7.0 - Unauthenticated Draft/Private Site Builder Content Disclosure via g
CVE-2026-16983 Gutentor < 4.0.6 - Subscriber+ Password Protected Post Password Disclosure via REST API
CVE-2026-14215 Amelia < 2.4.9 - Unauthenticated Post-Booking Action Trigger
CVE-2026-12526 Advanced Custom Fields: Extended < 0.9.2.7 - Unauthenticated Administrator Account Takeove
CVE-2026-12865 Photo Gallery by 10Web < 1.8.44 - Reflected XSS via title and paged Parameters
CVE-2025-15663 BEAF < 4.7.19 - Author+ Stored XSS via After Label
CVE-2025-15664 BEAF < 4.7.19 - Author+ Stored XSS via Before Label

Showing top 20 of 41 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Rank Math SEO
Same vendor: Unknown

V. Comments for CVE-2026-77788

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