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CVE-2026-57940

Quick assessment

Affected
danpros HTMLy
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.

Dan HTMLy是印度Dan个人开发者的一款内容管理系统组件。 Dan HTMLy 3.1.1版本存在服务端请求伪造漏洞，该漏洞源于RSS feed import功能中函数get_feed()将用户提供的$feed_url未经验证直接传递给file_get_contents()，可能导致已认证的攻击者利用特制URL发起服务器端请求伪造（SSRF）。

AI Predicted 7.4 Difficulty: Easy EPSS 0.39% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
danpros HTMLy 3.1.1 affected
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I. Basic Information for CVE-2026-57940

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
HTMLy 3.1.1 contains a Server-Side Request Forgery (SSRF) vulnerability in the RSS feed import functionality. The function get_feed() in system/admin/admin.php passes user-supplied $feed_url directly to file_get_contents() without any validation. An authenticated attacker with administrative privileges can exploit this by entering a crafted URL (e.g., http://dnslog.example.com, file:///etc/passwd, or http://169.254.169.254 in cloud contexts) via Tools -> Import RSS. The server will then make a request to the attacker-controlled target.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:N/R:A/V:D/RE:L/U:Clear
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Dan HTMLy 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dan HTMLy是印度Dan个人开发者的一款内容管理系统组件。 Dan HTMLy 3.1.1版本存在服务端请求伪造漏洞，该漏洞源于RSS feed import功能中函数get_feed()将用户提供的$feed_url未经验证直接传递给file_get_contents()，可能导致已认证的攻击者利用特制URL发起服务器端请求伪造（SSRF）。
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
danpros HTMLy 3.1.1 -

II. Public POCs for CVE-2026-57940

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III. Intelligence Information for CVE-2026-57940

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IV. Related Vulnerabilities

Same product: HTMLy
Same vendor: danpros
Same weakness: CWE-918

V. Comments for CVE-2026-57940

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