Is CVE-2026-33399 actively exploited?

CVE-2026-33399 has no public evidence of in-the-wild exploitation as of 2026-03-26.

What is the CVSS score for CVE-2026-33399?

CVE-2026-33399 has a CVSS score of 7.7 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

How do I patch CVE-2026-33399?

Patch guidance is available from wallosapp security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-33399.

Fix CVE-2026-33399 - HIGH wallosapp wallos

Description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the SSRF fix applied in version 4.6.2 for CVE-2026-30839 and CVE-2026-30840 is incomplete. The validate_webhook_url_for_ssrf() protection was added to the test* notification endpoints but not to the corresponding save* endpoints. An authenticated user can save an internal/private IP address as a notification URL, and when the cron job sendnotifications.php executes, the request is sent to the internal IP without any SSRF validation. This issue has been patched in version 4.7.0.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: changed
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-918 · Server-Side Request Forgery

Metadata

Primary Vendor: WALLOSAPP
Published: 3/24/2026
Last Modified: 3/26/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

wallosapp : wallos

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-33399. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-33399

View on NIST NVD

CVE-2026-33399 vulnerability