{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-22849 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22849 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22849 is a medium-severity cross-site scripting vulnerability in Hyweb HyCMS-J1, published on 22 Jan 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-22849 and fix it if it is affected.\n\nWhat it is: CVE-2021-22849 is a medium-severity cross-site scripting vulnerability in Hyweb HyCMS-J1, published on 22 Jan 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-22849 in the wild and no public exploit code.\n\nAffected product: Hyweb HyCMS-J1. 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-2021-22849/ (Markdown: https://insights.sbomify.com/CVE-2021-22849/index.md)","id":"CVE-2021-22849","markdown":"https://insights.sbomify.com/CVE-2021-22849/index.md","name":"CVE-2021-22849","record":{"aliases":["GHSA-j57c-7v46-28f4"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Hyweb HyCMS-J1","requires_auth":"low_privilege","summary":"Authenticated users can inject JavaScript into the Hyweb HyCMS-J1 backend, enabling stored XSS attacks against other users.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"twcert","cpe":[{"product":"hycms-j1","vendor":"hyweb"}],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Hyweb HyCMS-J1 backend editing function does not filter special characters. Users after log-in can inject JavaScript syntax to perform a stored XSS (Stored Cross-site scripting) attack.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Hyweb HyCMS-J1 - Stored XSS","id":"CVE-2021-22849","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"HGiga OAKloud Portal - Security Misconfiguration","id":"CVE-2021-22850"},"packages":[],"prev":{"headline":"HGiga MailSherlock - SQL Injection-2","id":"CVE-2021-22848"},"products":["HyCMS-J1"],"published":"2021-01-22","related":[{"cvss_score":8.8,"headline":"Hyweb HyCMS-J1 - SQL Injection","id":"CVE-2021-22847","kev_date_added":null,"published":"2021-01-22"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["Hyweb"]},"summary":"Authenticated users can inject JavaScript into the Hyweb HyCMS-J1 backend, enabling stored XSS attacks against other users.","url":"https://insights.sbomify.com/CVE-2021-22849/"}