CVE-2026-57645— WordPress Newsletters plugin <= 4.13 - Broken Access Control vulnerability
Quick assessment
Affected
Tribulant Software Newsletters
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.
tribulant newsletters是tribulant公司的一套邮件群发和营销系统。 Tribulant Software Newsletters 4.13及之前版本存在授权问题漏洞，该漏洞源于订阅者功能存在访问控制缺陷，可能导致攻击者利用网络访问，在无需身份验证但需用户交互的情况下，对数据造成高影响。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Tribulant Software | Newsletters | n/a≤ 4.13 |
affected |
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I. Basic Information for CVE-2026-57645
Vulnerability Information
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Vulnerability Title
WordPress Newsletters plugin <= 4.13 - Broken Access Control vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
newsletters_subscribers Broken Access Control in Newsletters <= 4.13 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Tribulant Software Newsletters 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
tribulant newsletters是tribulant公司的一套邮件群发和营销系统。 Tribulant Software Newsletters 4.13及之前版本存在授权问题漏洞，该漏洞源于订阅者功能存在访问控制缺陷，可能导致攻击者利用网络访问，在无需身份验证但需用户交互的情况下，对数据造成高影响。
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 |
|---|---|---|---|---|
| Tribulant Software | Newsletters | n/a ~ 4.13 | - |
|
II. Public POCs for CVE-2026-57645
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-57645 (1)
IV. Related Vulnerabilities
Same product: Newsletters
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Same vendor: Tribulant Software
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WordPress Newsletters plugin <= 4.12 - Cross Site Scripting
Same weakness: CWE-862
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V. Comments for CVE-2026-57645
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