{"data":{"id":"176eb1d2-f92f-455a-b35c-7fb5ab177be7","title":"CVE-2025-51859: Stored Cross-Site Scripting (XSS) vulnerability in Chaindesk thru 2025-05-26 in its agent chat component. An attacker…","summary":"CVE-2025-51859 is a stored Cross-Site Scripting (XSS) flaw in the agent chat component of Chaindesk through 2025-05-26. An attacker can craft an AI agent whose system prompt instructs the underlying Large Language Model (LLM) to embed script payloads, such as SVG-based XSS, in its chat responses. When a user interacts with that agent or opens a direct link to a conversation containing the payload, the script runs in the user's browser, which can expose sensitive data such as JWT session tokens and enable account hijacking.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-51859","publishedAt":"2025-07-22T15:15:36.623Z","cveId":"CVE-2025-51859","cweIds":["CWE-79"],"cvssScore":"6.5","cvssSeverity":"medium","severity":"medium","attackType":["prompt_injection","other"],"issueType":"vulnerability","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":["Chaindesk"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"Chaindesk stored cross-site scripting in agent chat component","headlinePromptVersion":"h1","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.00524,"epssCheckedAt":"2026-11-04T18:09:14.469Z","kevDateAdded":null,"advisoryAliases":["GHSA-cv56-r9m6-79rx"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":"2026-11-04T18:09:34.615Z","patchAvailable":null,"disclosureDate":null,"fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":["CAPEC-198","CAPEC-86"],"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity"],"aiComponentTargeted":"agent","llmSpecific":true,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":["AML.T0051"],"fixes":[]}}