{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-4256 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-4256 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-4256 is a low-severity cross-site scripting vulnerability in ctrlo lenio, published on 18 Dec 2022. 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-2021-4256 and fix it if it is affected.\n\nWhat it is: CVE-2021-4256 is a low-severity cross-site scripting vulnerability in ctrlo lenio, published on 18 Dec 2022. 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-2021-4256 in the wild and no public exploit code.\n\nAffected product: ctrlo lenio. 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-2021-4256/ (Markdown: https://insights.sbomify.com/CVE-2021-4256/index.md)","id":"CVE-2021-4256","markdown":"https://insights.sbomify.com/CVE-2021-4256/index.md","name":"CVE-2021-4256","record":{"aliases":["GHSA-p6j6-2jvf-j7v5"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Lenio web application","requires_auth":"low_privilege","summary":"Remote attackers can inject malicious scripts via task name fields in the Lenio web application, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"lenio","vendor":"ctrlo"}],"cvss":{"score":3.5,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-707","name":"Improper Neutralization"}],"description":"A vulnerability was found in ctrlo lenio. It has been classified as problematic. This affects an unknown part of the file views/index.tt. The manipulation of the argument task.name/task.site.org.name leads to cross site scripting. It is possible to initiate the attack remotely. The name of the patch is e1646d5cd0a2fbab9eb505196dd2ca1c9e4cdd97. It is recommended to apply a patch to fix this issue. The identifier VDB-216213 was assigned to this vulnerability.","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":"ctrlo lenio index.tt cross site scripting","id":"CVE-2021-4256","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"ctrlo lenio Task task.tt cross site scripting","id":"CVE-2021-4257"},"packages":[],"prev":{"headline":"ctrlo lenio contractor.tt cross site scripting","id":"CVE-2021-4255"},"products":["lenio"],"published":"2022-12-18","related":[{"cvss_score":3.5,"headline":"ctrlo lenio Ticket Lenio.pm cross site scripting","id":"CVE-2021-4253","kev_date_added":null,"published":"2022-12-18"},{"cvss_score":3.5,"headline":"ctrlo lenio Notice main.tt cross site scripting","id":"CVE-2021-4254","kev_date_added":null,"published":"2022-12-18"},{"cvss_score":3.5,"headline":"ctrlo lenio contractor.tt cross site scripting","id":"CVE-2021-4255","kev_date_added":null,"published":"2022-12-18"},{"cvss_score":3.5,"headline":"ctrlo lenio Task task.tt cross site scripting","id":"CVE-2021-4257","kev_date_added":null,"published":"2022-12-18"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-15","vendors":["ctrlo"]},"summary":"Remote attackers can inject malicious scripts via task name fields in the Lenio web application, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2021-4256/"}