What is CVE-2026-30839?

CVE-2026-30839 is a medium-severity vulnerability in Ellite Wallos, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-03-07.

How severe is CVE-2026-30839?

Medium severity. CVSS v3 base score is 4.3 out of 10.

SSRF in Ellite Wallos

CVE-2026-30839

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-03-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Ellite Wallos — versions < 4.6.2
Wallosapp Wallos

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/ellite/Wallos/security/advisories/GHSA-x4qp-xm2c-vqg9 (Exploit, Vendor Advisory)
github.com/ellite/Wallos/commit/e8a513591dbbf885966e2ef55c38622785b9060d (Patch)
github.com/ellite/Wallos/releases/tag/v4.6.2 (Release Notes)

Frequently asked questions

What is CVE-2026-30839?: CVE-2026-30839 is a medium-severity vulnerability in Ellite Wallos, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-03-07.
How severe is CVE-2026-30839?: Medium severity. CVSS v3 base score is 4.3 out of 10.