Wallos: SSRF via HTTP Proxy Environment Variable
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-922.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Wallos (ellite) Fixed in 4.7.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-33407
References
More ellite Wallos vulnerabilities
- TI-2026-23669 Wallos: Server-Side Request Forgery (SSRF) in Notification Testers CVSS 3.0HIGH 8.8
- TI-2024-19429 Wallos before 1.15.3 is vulnerable to SQL Injection via the category and payment parameters to /subscriptions/get.php. CVSS 3.1HIGH 8.1
- TI-2026-25796 Wallos: SSRF Bypass - Incomplete Fix for CVE-2026-30839/30840 CVSS 3.1HIGH 7.7
- TI-2026-21886 Wallos: SSRF via Redirect Bypass in Logo/Icon URL Fetch CVSS 3.1HIGH 7.7
- TI-2026-25814 Wallos: Password Reset Tokens Never Expire CVSS 3.1HIGH 7.1
- TI-2026-25798 Wallos: Incomplete fix for CVE-2026-30840 - SSRF in AI and notification endpoints bypass ssrf_helper.php CVSS 4.0HIGH 7.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences