CVE-2026-33407

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{"affected": [{"affectedData": [{"product": "Wallos", "vendor": "ellite", "versions": [{"status": "affected", "version": "< 4.7.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wallosapp:wallos:*:*:*:*:*:*:*:*", "matchCriteriaId": "7376DD5F-C93E-4454-810B-DE04B2DE7032", "versionEndExcluding": "4.7.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Wallos es un rastreador de suscripciones personal de c\u00f3digo abierto y autoalojable. Antes de la versi\u00f3n 4.7.0, el endpoint de Wallos /logos/search.PHP acepta las variables de entorno HTTP_PROXY y HTTPS_PROXY sin validaci\u00f3n, lo que permite SSRF a trav\u00e9s del secuestro de proxy. El servidor realiza la resoluci\u00f3n DNS en los t\u00e9rminos de b\u00fasqueda proporcionados por el usuario, que pueden ser controlados por atacantes para activar solicitudes salientes a dominios arbitrarios. Este problema ha sido parcheado en la versi\u00f3n 4.7.0."}], "id": "CVE-2026-33407", "lastModified": "2026-06-17T10:37:26.437", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33407", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-26T19:32:06.903727Z", "version": "2.0.3"}}]}, "published": "2026-03-24T18:16:11.627", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/ellite/Wallos/commit/e87387f0ebb540cd33e6dfda7181db9db650ecef#diff-d77202c5d47a3d7d4586e519f6f5e256da5fb2969fa8b9c75c399b2821e9de40"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/ellite/Wallos/security/advisories/GHSA-hhjq-82f8-m6rc"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}, {"lang": "en", "value": "CWE-922"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.7.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Wallos", "source": "cna", "vendor": "ellite"}, "product": "wallos", "vendor": "ellite"}], "analysis": {"en": {"generated_at": "2026-03-26T22:39:56.412112+00:00", "value": {"mitigation_remediation": ["Upgrade Wallos to version 4.7.0 or newer to apply the fix that validates HTTP_PROXY and HTTPS_PROXY environment variables.", "After upgrading, verify that the application no longer accepts these environment variables without validation.", "Continuously monitor outbound traffic from the Wallos instance for unexpected requests and consider restricting DNS or HTTP access to trusted domains."], "summary": {"action": "Immediate Patch", "impact": "Remote Server Side Request Forgery"}, "threat_synthesis": {"affected_systems": "All releases of Wallos distributed by ellite before version 4.7.0 are affected. Users of these versions must upgrade to the patched release that sanitizes HTTP_PROXY and HTTPS_PROXY input.", "description_and_impact": "Wallos, an open\u2011source subscription tracker, permits attackers to set the HTTP_PROXY and HTTPS_PROXY environment variables for the search.php endpoint. Because the application performs DNS resolution on user\u2011supplied search terms without validating these variables, an attacker can trigger arbitrary outbound requests to internal or external hosts. This grants server\u2011side request forgery, enabling network probing, data exfiltration or potentially remote code execution against vulnerable services. The flaw corresponds to CWE\u2011918 (Server Side Request Forgery) and CWE\u2011922 (Insecure Direct Object References).", "risk_and_exploitability": "The CVSS score of 8.3 designates this vulnerability as high severity, yet the EPSS indicates a very low probability of exploitation (<1%). It is not listed in the CISA KEV catalog, suggesting no widespread active exploitation. The attack requires only a crafted HTTP request to the vulnerable endpoint and does not need local or privileged access, making it a notable risk for exposed deployments."}}}}, "created": "2026-03-25T11:46:53.927728+00:00", "updated": "2026-03-27T09:20:52.641180+00:00", "vendors": ["ellite", "ellite$PRODUCT$wallos"]}