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CVE-2026-30839— Wallos: SSRF via webhook test endpoint

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 4.6.2之前版本存在代码问题漏洞，该漏洞源于testwebhooknotifications.php未针对私有IP范围验证目标URL，可能导致完全读取的服务端请求伪造。

AI Predicted 9.8 Difficulty: Easy EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-30839

Vulnerability Information
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Vulnerability Title
Wallos: SSRF via webhook test endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, testwebhooknotifications.php does not validate the target URL against private/reserved IP ranges, enabling full-read SSRF. The server response is returned to the caller. This issue has been patched in version 4.6.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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 代码问题漏洞
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 4.6.2之前版本存在代码问题漏洞，该漏洞源于testwebhooknotifications.php未针对私有IP范围验证目标URL，可能导致完全读取的服务端请求伪造。
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 < 4.6.2 -

II. Public POCs for CVE-2026-30839

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III. Intelligence Information for CVE-2026-30839

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Patches & Fixes for CVE-2026-30839 (1)

Vendor Advisories for CVE-2026-30839 (1)

Vendor Pages for CVE-2026-30839 (1)

Same Patch Batch · ellite · 2026-03-07 · 5 CVEs total

CVE-2026-30842 4.3 MEDIUM Wallos: Authenticated Missing Authorization Allows Deletion of Other Users’ Uploaded Avata
CVE-2026-30841 Wallos: Reflected XSS via unescaped token and email parameters in passwordreset.php
CVE-2026-30828 Wallos: SSRF via url parameter leading to File Traversal
CVE-2026-30840 Wallos: Server-Side Request Forgery (SSRF) in Notification Testers

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-30839

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