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CVE-2026-33407

Wallos: SSRF via HTTP Proxy Environment Variable

Published: Mar 24, 2026Updated: Mar 26, 2026 Sources: CVE List NVDCWE-918
9.1CRITICAL
NVD MITRE
EPSS Score
0.4%
Top 71.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, Wallos endpoints/logos/search.php accepts HTTP_PROXY and HTTPS_PROXY environment variables without validation, enabling SSRF via proxy hijacking. The server performs DNS resolution on user-supplied search terms, which can be controlled by attackers to trigger outbound requests to arbitrary domains. This issue has been patched in version 4.7.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-918CWE-922

Affected Products

walloswallosapp
On-prem
Web & CMS Plugins / site-builder
Wallosellite
On-prem
Networking Infrastructure / network-management
wallosapposs-projectWeb & CMS Pluginsaka wallos
elliteNetworking Infrastructureaka wallos

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Command and Control
Credential Access
Initial Access
View detailed technique mapping

References

https://github.com/ellite/Wallos/commit/e87387f0ebb540cd33e6dfda7181db9db650ecef#diff-d77202c5d47a3d7d4586e519f6f5e256da5fb2969fa8b9c75c399b2821e9de40
github.com
https://github.com/ellite/Wallos/security/advisories/GHSA-hhjq-82f8-m6rc
github.com

Timeline

Published
Mar 24, 2026
Last Updated
Mar 26, 2026

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