CVE-2026-77786

Rank Math SEO – AI SEO Tools to Dominate SEO Rankings < 1.0.277 - Missing Authorization

2026-08-29 00:00

Strategic Overview

Status: Patched in 1.0.277
Affected Plugin: Rank Math SEO – AI SEO Tools to Dominate SEO Rankings
Affected Version: < 1.0.277
CVSS: 2.7Low
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-77786

View all Rank Math SEO – AI SEO Tools to Dominate SEO Rankings vulnerabilities

At a glance

CVE-2026-77786 is a low-severity Missing Authorization vulnerability in the Rank Math SEO WordPress plugin, affecting versions < 1.0.277. It carries a CVSS score of 2.7 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 1.0.277; sites on affected versions should update now. Disclosed August 2026, reported by Mohammed Abd Alrahman.

Vulnerability Overview

The Rank Math SEO – AI SEO Tools to Dominate SEO Rankings plugin for WordPress is vulnerable to unauthorized access in all versions up to 1.0.277. This is due to a missing capability check on a function. This makes it possible for authenticated attackers, with editor-level access and above, to perform an unauthorized action.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Rank Math SEO < 1.0.277 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Rank Math SEO the fix is 1.0.277: builds < 1.0.277 are affected, anything from 1.0.277 onward is not.

Remediation

Update to version 1.0.277, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Rank Math SEO 1.0.277 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-77786 https://www.wordfence.com/threat-intel/vulnerabilities/id/5c3862db-d04b-40e2-8b5e-99cd3153d654 https://nvd.nist.gov/vuln/detail/CVE-2026-77786

Related records

Same weakness class

Other vulnerabilities in Rank Math SEO – AI SEO Tools to Dominate SEO Rankings

CVSS Vector

2.7

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/