CVE-2026-77807— AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress <= 11.0.4 - Unauthenticated Arbitrary File Read via 'user[name]' Parameter
Quick assessment
Affected
acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
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.
WordPress 插件“AcyMailing – 终极新闻通讯插件与营销自动化工具”在所有版本（包括 11.0.4 及之前）中存在目录遍历（Directory Traversal）漏洞，攻击向量为 参数。该漏洞允许未经认证的攻击者读取服务器上的任意文件内容，而这些文件可能包含敏感信息。利用此漏洞的前提是，AcyMailing 配置中的“嵌入图片”（Embed images）选项必须处于启用状态。
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I. Basic Information for CVE-2026-77807
Vulnerability Information
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Vulnerability Title
AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress <= 11.0.4 - Unauthenticated Arbitrary File Read via 'user[name]' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 11.0.4 via the `user[name]` Parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires "Embed images" option in AcyMailing configuration being enabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| acyba | AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress | 0 ~ 11.0.4 | - |
|
II. Public POCs for CVE-2026-77807
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-77807 (2)
IV. Related Vulnerabilities
Same product: AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
-
CVE-2026-15426
AcyMailing <= 10.11.1 - Authenticated (Subscriber+) Missing -
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AcyMailing <= 10.10.2 - Authenticated (Contributor+) Stored -
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AcyMailing <= 10.8.2 - Missing Authorization to Authenticate -
CVE-2026-3614
AcyMailing 9.11.0 - 10.8.1 - Missing Authorization to Authen -
CVE-2024-7384
AcyMailing <= 9.7.2 - Authenticated (Subscriber+) Arbitrary
Same vendor: acyba
-
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CVE-2026-12170
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AcyMailing <= 9.7.2 - Authenticated (Subscriber+) Arbitrary
Same weakness: CWE-22
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V. Comments for CVE-2026-77807
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