{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-54395 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-54395 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-54395 is a medium-severity cross-site scripting vulnerability in misp, published on 12 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54395 and fix it if it is affected.\n\nWhat it is: CVE-2026-54395 is a medium-severity cross-site scripting vulnerability in misp, published on 12 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-54395 in the wild and no public exploit code.\n\nAffected product: misp. 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-2026-54395/ (Markdown: https://insights.sbomify.com/CVE-2026-54395/index.md)","id":"CVE-2026-54395","markdown":"https://insights.sbomify.com/CVE-2026-54395/index.md","name":"CVE-2026-54395","record":{"aliases":["GHSA-53gc-pj4j-m2pq"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MISP threat sharing","requires_auth":"low_privilege","summary":"Reflected XSS in MISP UiBeta event index allows attackers to execute arbitrary JavaScript in victim browsers via crafted URLs.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CIRCL","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"MISP contains a reflected cross-site scripting vulnerability in the UiBeta event index view. The urlparams value is inserted into an inline JavaScript handler using HTML escaping inside a single-quoted JavaScript string. Because browsers HTML-decode attribute values before JavaScript parsing, a crafted searcheventinfo value can restore encoded quote characters and break out of the JavaScript string. An attacker could craft a malicious URL that, when opened by a victim using the UiBeta event index, executes arbitrary JavaScript in the victim’s browser in the context of the MISP instance. The issue is fixed by encoding the value as a JavaScript string literal with json_encode() before applying HTML escaping at the attribute layer.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"MISP UiBeta event index reflected XSS in advanced filter popup","id":"CVE-2026-54395","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"MISP AuthKey edit endpoint allows authenticated user email enumeration","id":"CVE-2026-54396"},"packages":[],"prev":{"headline":"MISP organisation logo path traversal allows retrieval of arbitrary PNG/SVG files","id":"CVE-2026-54394"},"products":["misp"],"published":"2026-06-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-15","vendors":["misp"]},"summary":"Reflected XSS in MISP UiBeta event index allows attackers to execute arbitrary JavaScript in victim browsers via crafted URLs.","url":"https://insights.sbomify.com/CVE-2026-54395/"}