{"answers":{"affected":"3 open source packages ship an affected version, including lin-cms. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-18699 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-18699 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-18699 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Aug 2021. 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-2020-18699 and fix it if it is affected.\n\nWhat it is: CVE-2020-18699 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-18699 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- lin-cms (PyPI): affected all versions; no fix listed\n- lin-cms (PyPI): affected all versions up to 0.1.1b2; no fix listed\n- lin-cms (PyPI): affected all versions up to 0.1.1b2; no fix listed\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-2020-18699/ (Markdown: https://insights.sbomify.com/CVE-2020-18699/index.md)","id":"CVE-2020-18699","markdown":"https://insights.sbomify.com/CVE-2020-18699/index.md","name":"CVE-2020-18699","record":{"aliases":["GHSA-rvf8-c35m-8289","PYSEC-2021-340"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Lin-CMS-Flask","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via Cross-Site Scripting in the Username parameter of Lin-CMS-Flask.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"lin-cms-flask","vendor":"talelin"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Cross Site Scripting (XSS) in Lin-CMS-Flask v0.1.1 allows remote attackers to execute arbitrary code by entering scripts in the the 'Username' parameter of the in component 'app/api/cms/user.py'.","ecosystems":["PyPI"],"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":"Lin-CMS-Flask Cross Site Scripting (XSS) vulnerability","id":"CVE-2020-18699","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"xss","year":"2020"},"n_packages":3,"n_references":1,"next":{"headline":"Auth bypass in n/a","id":"CVE-2020-18701"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":[],"package":"lin-cms","purl":"pkg:pypi/lin-cms","source":"PYSEC-2021-340"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.1.1b2"],"package":"lin-cms","purl":null,"source":"GHSA-rvf8-c35m-8289"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.1.1b2"],"package":"lin-cms","purl":"pkg:pypi/lin-cms","source":"GHSA-rvf8-c35m-8289"}],"prev":{"headline":"Lin-CMS-Flask vulnerable to Improper Authentication","id":"CVE-2020-18698"},"products":["n/a"],"published":"2021-08-16","related":[{"cvss_score":9.8,"headline":"Lin-CMS-Flask vulnerable to Improper Authentication","id":"CVE-2020-18698","kev_date_added":null,"published":"2021-08-16"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2020-18701","kev_date_added":null,"published":"2021-08-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"Remote attackers can execute arbitrary code via Cross-Site Scripting in the Username parameter of Lin-CMS-Flask.","url":"https://insights.sbomify.com/CVE-2020-18699/"}