Wallos
CVE-2026-27479
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate to Wallos application
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DeliveryUpload subscription with malicious logo URL
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ExploitInitial URL passes IP validation
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ExecutionHTTP redirect redirects to internal resource
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PersistAccess cloud metadata endpoint
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ImpactExtract sensitive credentials
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Wallos versions 4.6.0 and below with CURLOPT_FOLLOWLOCATION enabled in getLogoFromUrl() function. Attacker requires valid Wallos user account (PR:L). Logo/icon upload functionality must be accessible during subscription or payment configuration. |
| Impact | CVSS 7.7 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Wallos versions 4.6.0 and below allow authenticated attackers to perform Server-Side Request Forgery attacks through the logo upload feature by exploiting HTTP redirects that bypass IP validation checks, enabling access to internal resources and cloud metadata endpoints. Public exploit code exists for this vulnerability, and an available patch should be applied immediately to prevent unauthorized disclosure of sensitive configuration and credentials.
Earlier versions of this analysis (1)
Wallos is an open-source, self-hostable personal subscription tracker. Versions 4.6.0 and below contain a Server-Side Request Forgery (SSRF) vulnerability in the subscription and payment logo/icon upload functionality. [CVSS 7.7 HIGH]
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 4.6.1.. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-918 (Server-Side Request Forgery (SSRF)). Affects Wallos. Wallos is an open-source, self-hostable personal subscription tracker. Versions 4.6.0 and below contain a Server-Side Request Forgery (SSRF) vulnerability in the subscription and payment logo/icon upload functionality. The application validates the IP address of the provided URL before making the request, but allows HTTP redirects (CURLOPT_FOLLOWLOCATION = true), enabling an attacker to bypass the IP validation and access internal resources, including cloud instance metadata endpoints. The getLo
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
Wallos is an open-source, self-hostable personal subscription tracker. Versions 4.6.0 and below contain a Server-Side Request Forgery (SSRF) vulnerability in the subscription and payment logo/icon upload functionality. The application validates the IP address of the provided URL before making the request, but allows HTTP redirects (CURLOPT_FOLLOWLOCATION = true), enabling an attacker to bypass the IP validation and access internal resources, including cloud instance metadata endpoints. The getLogoFromUrl() function validates the URL by resolving the hostname and checking if the resulting IP is in a private or reserved range using FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE. However, the subsequent cURL request is configured with CURLOPT_FOLLOWLOCATION = true and CURLOPT_MAXREDIRS = 3, which means the request will follow HTTP redirects without re-validating the destination IP. This issue has been fixed in version 4.6.1.
Executive ViewAI
Organizations running Wallos subscription tracker versions 4.6.0 and below face a high-severity SSRF vulnerability that could allow attackers to access internal network resources and sensitive data through malicious logo uploads. This affects any organization using this self-hosted tool for subscription management, with public exploits already available.
Apply vendor patch. If immediate patching is not possible, disable the logo/icon upload feature in Wallos configuration, restrict network access from the Wallos server to internal resources using firewall rules, and implement WAF rules to block malicious upload requests targeting internal IP ranges.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.
Affected Products (CPE)GitHub Advisory
Wallos <=2.38.2 has a file upload vulnerability in the restore database function, which allows unauthenticated users to
Wallos <= 2.38.2 has a file upload vulnerability in the restore backup function, which allows authenticated users to res
Server-side request forgery in Wallos versions before 4.6.2 allows authenticated attackers to conduct arbitrary network
Wallos before 1.15.3 is vulnerable to SQL Injection via the category and payment parameters to /subscriptions/get.php. R
Path traversal in Wallos subscription tracker versions prior to 4.6.2 allows unauthenticated remote attackers to read ar
Reflected cross-site scripting (XSS) in Wallos password reset functionality before version 4.6.2 allows unauthenticated
Wallos 0.9 is vulnerable to Cross Site Scripting (XSS) in all text-based input fields without proper validation, excludi
Zip Slip path traversal in Wallos's database restore endpoint allows an authenticated administrator to write arbitrary f
SSRF via admin-configurable OIDC endpoint URLs in Wallos subscription tracker allows an authenticated admin to direct th
Wallos, an open-source self-hostable subscription tracker, contains a Server-Side Request Forgery (SSRF) vulnerability i
Wallos prior to version 4.6.2 contains an authorization bypass allowing authenticated users to delete avatar files belon
Wallos versions prior to 4.6.2 contain a server-side request forgery (SSRF) vulnerability in the webhook notification te
Exploit-DB