CVE-2026-30828: Wallos: SSRF via url parameter leading to File Traversal

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-07 · updated 2026-06-17
Weakness: CWE-22

Description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, the url parameter can be used to retrieve local system files. This issue has been patched in version 4.6.2.

Affected products

ellite Wallos: before 4.6.2 — fixed in 4.6.2

How to fix

Upgrade to a fixed version: ellite Wallos 4.6.2. Check the vendor advisory for mitigations.

References

https://github.com/ellite/Wallos/commit/e8a513591dbbf885966e2ef55c38622785b9060d
https://github.com/ellite/Wallos/releases/tag/v4.6.2
https://github.com/ellite/Wallos/security/advisories/GHSA-p7qj-669r-grvc

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