CVE-2026-33400
Wallos: Stored cross-site scripting (XSS) vulnerability in the payment method rename endpoint
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
24 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, a stored cross-site scripting (XSS) vulnerability in the payment method rename endpoint allows any authenticated user to inject arbitrary JavaScript that executes when any user visits the Settings, Subscriptions, or Statistics pages. Combined with the wallos_login authentication cookie lacking the HttpOnly flag, this enables full session hijacking. This issue has been patched in version 4.7.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected products
ellite · WallosWant to know if your infrastructure is exposed to this?
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