CVE-2026-5254

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Affected by this issue is some unknown functionality of the file /ui/app/components/AppJsonTreeView.vue of the component Webhook Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way."}, {"lang": "es", "value": "Una vulnerabilidad de seguridad ha sido detectada en welovemedia FFmate hasta la versi\u00f3n 2.0.15. Afectada por este problema es alguna funcionalidad desconocida del archivo /ui/app/components/AppJsonTreeView.vue del componente Gestor de Webhooks. La manipulaci\u00f3n conduce a cross-site scripting. El ataque puede ser iniciado remotamente. El exploit ha sido divulgado p\u00fablicamente y puede ser usado. El proveedor fue contactado tempranamente sobre esta divulgaci\u00f3n pero no respondi\u00f3 de ninguna manera."}], "id": "CVE-2026-5254", "lastModified": "2026-10-26T22:10:00.163", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.5, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.0, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5254", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-01T11:43:19.114846Z", "version": "2.0.3"}}]}, "published": "2026-04-01T05:15:59.983", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/CC-T-454455/Vulnerabilities/tree/master/ffmate/vulnerability-2"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/780615"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/354444"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/354444/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-94"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.7"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.9"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.10"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.11"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.12"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.13"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.14"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.15"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FFmate", "source": "cna", "vendor": "welovemedia"}, "product": "ffmate", "vendor": "welovemedia"}], "analysis": {"en": {"generated_at": "2026-04-01T06:26:41.165663+00:00", "value": {"mitigation_remediation": ["Verify the installed FFmate version and ensure it is later than 2.0.15; if a patch or newer release is available, apply it immediately", "If no official update exists, consider disabling or restricting the Webhook Handler component until a fix is released", "Deploy a web application firewall rule to block reflected XSS payloads against the vulnerable endpoint", "Monitor application logs for anomalous requests that may target the AppJsonTreeView component", "Reach out again to welovemedia to request an official fix or response", "Implement general XSS hardening measures, such as context\u2011aware escaping of user input"], "summary": {"action": "Assess Impact", "impact": "Cross-site scripting"}, "threat_synthesis": {"affected_systems": "The affected product is welovemedia FFmate, specifically the Webhook Handler component located in /ui/app/components/AppJsonTreeView.vue. Versions up to and including 2.0.15 are vulnerable; no further version information is provided.", "description_and_impact": "A flaw in the AppJsonTreeView component of welovemedia FFmate allows remote attackers to inject arbitrary script via a manipulation of input to the Webhook Handler, leading to cross-site scripting. The disclosure shows that an attacker could run malicious client-side code within a user\u2019s browser session, potentially stealing session data or performing other malicious client actions. The vulnerability stems from reflected input handling failures (CWE\u201179) and improper code execution pathways (CWE\u201194). The evidence that the attack can be initiated remotely means an unauthenticated attacker can supply crafted requests to the vulnerable endpoint without needing privileged access.", "risk_and_exploitability": "The CVSS score of 5.1 indicates moderate severity. Exploit code is publicly available and the vulnerability can be triggered remotely, increasing the likelihood of abuse. Although the EPSS score is not listed and the issue is not in the CISA KEV catalog, the combination of a moderate CVSS score with a publicly disclosed exploit advises security teams to treat this as a notable threat. An attacker can deliver malicious scripts that execute in the context of any user who interacts with the vulnerable component, potentially leading to session hijacking or defacement."}}}}, "created": "2026-04-02T07:50:16.700889+00:00", "updated": "2026-04-02T20:18:28.692866+00:00", "vendors": ["welovemedia", "welovemedia$PRODUCT$ffmate"]}