CVE-2026-57661— WordPress WPComplete plugin <= 2.9.5.5 - Broken Access Control vulnerability
Possible ATT&CK Techniques 1AI
T1078 · Valid AccountsAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Nexcess | WPComplete | n/a≤ 2.9.5.5 | affected |
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I. Basic Information for CVE-2026-57661
Vulnerability Information
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Vulnerability Title
WordPress WPComplete plugin <= 2.9.5.5 - Broken Access Control vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Subscriber Broken Access Control in WPComplete <= 2.9.5.5 versions.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nexcess WPComplete 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nexcess WPComplete是Nexcess的一款WordPress插件，用于完善购买流程。 Nexcess WPComplete 2.9.5.5及之前版本存在授权问题漏洞，该漏洞源于访问控制不当，可能导致订阅者角色用户权限被破坏。
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 |
|---|---|---|---|---|
| Nexcess | WPComplete | n/a ~ 2.9.5.5 | - |
II. Public POCs for CVE-2026-57661
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Other References for CVE-2026-57661 (1)
IV. Related Vulnerabilities
Same product: WPComplete
- CVE-2026-42750
WordPress WPComplete plugin <= 2.9.5.4 - Cross Site Scriptin - CVE-2025-49906
WordPress WPComplete plugin <= 2.9.5.3 - Broken Access Contr - CVE-2025-58974
WordPress WPComplete Plugin <= 2.9.5.2 - Cross Site Scriptin - CVE-2025-50046
WordPress WPComplete plugin <= 2.9.5 - Cross Site Scripting - CVE-2022-45825
WordPress WPComplete Plugin <= 2.9.4 is vulnerable to Cross
Same weakness: CWE-862
- CVE-2026-58590
FlowDrop - Moderately critical - Access bypass - SA-CONTRIB- - CVE-2026-58589
FlowDrop - Moderately critical - Access bypass - SA-CONTRIB- - CVE-2026-13241
Paragraphs - Moderately critical - Access bypass - SA-CONTRI - CVE-2026-13240
Paragraphs - Less critical - Access bypass - SA-CONTRIB-2026 - CVE-2026-13239
WissKI - Critical - Access bypass - SA-CONTRIB-2026-059
V. Comments for CVE-2026-57661
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