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CVE-2026-33407— Wallos: SSRF via HTTP Proxy Environment Variable

Quick assessment

Affected
ellite Wallos
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.

Wallos是Miguel Ribeiro个人开发者的一个开源个人订阅跟踪器。 Wallos 4.7.0之前版本存在安全漏洞，该漏洞源于endpoints/logos/search.php接受未经验证的HTTP_PROXY和HTTPS_PROXY环境变量，可能导致通过代理劫持进行SSRF攻击。

AI Predicted 7.4 Difficulty: Moderate EPSS 0.37% · P30

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-33407

Vulnerability Information
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Vulnerability Title
Wallos: SSRF via HTTP Proxy Environment Variable
Source: CVE Program / CVE List V5
Vulnerability Description
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, Wallos endpoints/logos/search.php accepts HTTP_PROXY and HTTPS_PROXY environment variables without validation, enabling SSRF via proxy hijacking. The server performs DNS resolution on user-supplied search terms, which can be controlled by attackers to trigger outbound requests to arbitrary domains. This issue has been patched in version 4.7.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Wallos 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wallos是Miguel Ribeiro个人开发者的一个开源个人订阅跟踪器。 Wallos 4.7.0之前版本存在安全漏洞，该漏洞源于endpoints/logos/search.php接受未经验证的HTTP_PROXY和HTTPS_PROXY环境变量，可能导致通过代理劫持进行SSRF攻击。
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
ellite Wallos < 4.7.0 -

II. Public POCs for CVE-2026-33407

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III. Intelligence Information for CVE-2026-33407

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Patches & Fixes for CVE-2026-33407 (1)

Vendor Advisories for CVE-2026-33407 (1)

Same Patch Batch · ellite · 2026-03-24 · 5 CVEs total

CVE-2026-33399 7.7 HIGH Wallos: SSRF Bypass - Incomplete Fix for CVE-2026-30839/30840
CVE-2026-33417 6.5 MEDIUM Wallos: Password Reset Tokens Never Expire
CVE-2026-33400 5.4 MEDIUM Wallos: Stored cross-site scripting (XSS) vulnerability in the payment method rename endpo
CVE-2026-33401 Wallos: Incomplete fix for CVE-2026-30840 - SSRF in AI and notification endpoints bypass s

IV. Related Vulnerabilities

Same product: Wallos
Same vendor: ellite
Same weakness: CWE-918

V. Comments for CVE-2026-33407

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