CVE-2026-33400
MEDIUMWallos: Stored cross-site scripting (XSS) vulnerability in the payment method rename endpoint
Title source: cnaDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/ellite/Wallos/security/advisories/GHSA-p6v5-227f-f3fv
X_Refsource_Misc x_refsource_misc
https://github.com/ellite/Wallos/commit/e87387f0ebb540cd33e6dfda7181db9db650ecef
Scores
CVSS v3
5.4
EPSS
0.0019
EPSS Percentile
9.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
ellite/Wallos
< 4.7.0
wallosapp/wallos
< 4.7.0
Published
Mar 24, 2026
Tracked Since
Mar 24, 2026