{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66222 exists.","fix":"No fix has been published for CVE-2025-66222 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-66222 is a critical cross-site scripting vulnerability in ThinkInAIXYZ deepchat, published on 3 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-66222 and fix it if it is affected.\n\nWhat it is: CVE-2025-66222 is a critical cross-site scripting vulnerability in ThinkInAIXYZ deepchat, published on 3 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66222 exists.\n\nAffected product: ThinkInAIXYZ deepchat. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-66222/ (Markdown: https://insights.sbomify.com/CVE-2025-66222/index.md)","id":"CVE-2025-66222","markdown":"https://insights.sbomify.com/CVE-2025-66222/index.md","name":"CVE-2025-66222","record":{"aliases":["GHSA-v8v5-c872-mf8r"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"DeepChat AI assistant","requires_auth":"none","summary":"Stored XSS in DeepChat's Mermaid renderer allows attackers to execute arbitrary code via Electron IPC bridge escalation.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"deepchat","vendor":"thinkinai"}],"cvss":{"score":9.7,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"DeepChat is a smart assistant uses artificial intelligence. In 0.5.0 and earlier, there is a Stored Cross-Site Scripting (XSS) vulnerability in the Mermaid diagram renderer allows an attacker to execute arbitrary JavaScript within the application context. By leveraging the exposed Electron IPC bridge, this XSS can be escalated to Remote Code Execution (RCE) by registering and starting a malicious MCP (Model Context Protocol) server.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"DeepChat Cross-Site Scripting(XSS) escalate to Remote Code Execution(RCE)","id":"CVE-2025-66222","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"OpenObserve's Invite Token Lifecycle Misconfiguration","id":"CVE-2025-66223"},"packages":[],"prev":{"headline":"Werkzeug safe_join() allows Windows special device names","id":"CVE-2025-66221"},"products":["deepchat"],"published":"2025-12-03","related":[{"cvss_score":9.7,"headline":"Mermaid XSS vulnerability leads to Remote Code Execution","id":"CVE-2025-67744","kev_date_added":null,"published":"2025-12-16"},{"cvss_score":9.7,"headline":"DeepChat's Incomplete XSS Fix Allows RCE through Mermaid Content","id":"CVE-2025-66481","kev_date_added":null,"published":"2025-12-09"},{"cvss_score":9.7,"headline":"DeepChat's Mermaid rendering has XSS leading to RCE","id":"CVE-2025-58768","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":9.7,"headline":"DeepChat One-click Remote Code Execution through Custom URL Handling","id":"CVE-2025-55733","kev_date_added":null,"published":"2025-08-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-12-03","vendors":["ThinkInAIXYZ"]},"summary":"Stored XSS in DeepChat's Mermaid renderer allows attackers to execute arbitrary code via Electron IPC bridge escalation.","url":"https://insights.sbomify.com/CVE-2025-66222/"}