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CVE-2026-77348 – Unauthenticated SSRF (httpoxy) – Wallos < 5.0.0

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Summary

CVE-2026-77348 is a Server-Side Request Forgery (SSRF) vulnerability in Wallos, an open-source, self-hostable personal subscription tracker, rated High severity (CVSS 8.2). The flaw stems from an incomplete fix for a prior SSRF issue (CVE-2026-33407): the earlier patch hardened one search endpoint but left a nearly identical, unauthenticated endpoint exposed to the same "httpoxy"-style attack.

Technical details

  • Root cause: endpoints/payments/search.php passes the HTTP_PROXY/HTTPS_PROXY environment variable directly into CURLOPT_PROXY when making outbound HTTP requests.
  • The prior fix for CVE-2026-33407 disabled this behavior in the similar endpoints/logos/search.php endpoint, but did not apply the same hardening to the payments search endpoint.
  • Attack vector: network, no authentication or user interaction required (AV:N/AC:L/PR:N/UI:N).
  • Impact: an attacker can influence the proxy used for server-initiated requests, enabling SSRF that can disclose internal data (high confidentiality impact) and allow limited manipulation of responses (low integrity impact).

Affected software

  • Wallos (vendor: ellite) versions prior to 5.0.0

Severity

  • CVSS v3.1 Base Score: 8.2 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Mitigation and recommended actions

  • Immediate: Upgrade Wallos to version 5.0.0 or later, which removes the environment-variable-driven proxy configuration from the payments search endpoint.
  • If immediate patching is not possible: restrict or unset HTTP_PROXY/HTTPS_PROXY environment variables on the host/container running Wallos, and restrict outbound network access from the Wallos server to prevent it from reaching internal-only services.

How IONIX identifies potentially affected assets

IONIX matches the following signal against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Page title: Wallos - Subscription Tracker

References

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