Reflected XSS Vulnerability in Wallos Subscription Tracker by ellite
CVE-2026-30841

6.9MEDIUM

Key Information:

Vendor

Ellite

Status
Wallos
Vendor
CVE Published:
7 March 2026

What is CVE-2026-30841?

Wallos, an open-source personal subscription tracker, is vulnerable to a reflected XSS attack due to improper handling of user input. Specifically, prior to version 4.6.2, the system directly outputs values from the GET parameters 'token' and 'email' into HTML input attributes without adequate escaping through functions like htmlspecialchars(). This oversight allows attackers to inject malicious scripts into web pages, potentially compromising user data and session integrity. The issue has been resolved in version 4.6.2.

Affected Version(s)

Wallos < 4.6.2

References

https://github.com/ellite/Wallos/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/ellite/Wallos/commit/e8a513591dbbf8859...
x_refsource_MISC
https://github.com/ellite/Wallos/releases/tag/v4.6.2
x_refsource_MISC

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.