CVE-2026-81757— WordPress Rank Math SEO plugin <= 1.0.276 - Remote Code Execution (RCE) vulnerability
Quick assessment
Affected
Rank Math SEO 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是Rank Math SEO公司开源的一个搜索引擎优化工具。 Rank Math SEO 1.0.276及之前版本存在反序列化注入漏洞，该漏洞源于存在远程代码执行问题，可能导致具有作者权限的攻击者执行任意代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Rank Math SEO | Rank Math SEO | n/a≤ 1.0.276 |
affected |
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I. Basic Information for CVE-2026-81757
Vulnerability Information
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Vulnerability Title
WordPress Rank Math SEO plugin <= 1.0.276 - Remote Code Execution (RCE) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Author Remote Code Execution (RCE) in Rank Math SEO <= 1.0.276 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Rank Math SEO 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rank Math SEO是Rank Math SEO公司开源的一个搜索引擎优化工具。 Rank Math SEO 1.0.276及之前版本存在反序列化注入漏洞，该漏洞源于存在远程代码执行问题，可能导致具有作者权限的攻击者执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Rank Math SEO | Rank Math SEO | n/a ~ 1.0.276 | - |
|
II. Public POCs for CVE-2026-81757
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-81757 (1)
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