{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20850 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20850 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20850 is a critical command injection vulnerability in Alfasado Inc. PowerCMS XMLRPC API, published on 24 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20850 and fix it if it is affected.\n\nWhat it is: CVE-2021-20850 is a critical command injection vulnerability in Alfasado Inc. PowerCMS XMLRPC API, published on 24 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-20850 in the wild and no public exploit code.\n\nAffected product: Alfasado Inc. PowerCMS XMLRPC API. 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-2021-20850/ (Markdown: https://insights.sbomify.com/CVE-2021-20850/index.md)","id":"CVE-2021-20850","markdown":"https://insights.sbomify.com/CVE-2021-20850/index.md","name":"CVE-2021-20850","record":{"aliases":["GHSA-cw2g-2q23-x8ff"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"PowerCMS XMLRPC API","requires_auth":"none","summary":"Remote attackers can execute arbitrary OS commands via the PowerCMS XMLRPC API, requiring immediate upgrades to secure versions.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"powercms","vendor":"alfasado"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"PowerCMS XMLRPC API of PowerCMS 5.19 and earlier, PowerCMS 4.49 and earlier, PowerCMS 3.295 and earlier, and PowerCMS 2 Series (End-of-Life, EOL) allows a remote attacker to execute an arbitrary OS command via unspecified vectors.","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":"Command injection in PowerCMS XMLRPC API","id":"CVE-2021-20850","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site request forgery in Browser and Operating System Finder","id":"CVE-2021-20851"},"packages":[],"prev":{"headline":"Cross-site Scripting in github.com/schollz/rwtxt","id":"CVE-2021-20848"},"products":["PowerCMS XMLRPC API"],"published":"2021-11-24","related":[{"cvss_score":9.8,"headline":"Command injection in PowerCMS XMLRPC API","id":"CVE-2022-33941","kev_date_added":null,"published":"2022-09-08"},{"cvss_score":8.6,"headline":"Path traversal in PowerCMS","id":"CVE-2025-46359","kev_date_added":null,"published":"2025-07-31"},{"cvss_score":6.1,"headline":"Open redirect in PowerCMS (PowerCMS 4 Series)","id":"CVE-2023-50297","kev_date_added":null,"published":"2023-12-26"},{"cvss_score":6.1,"headline":"Open redirect in PowerCMS","id":"CVE-2019-6020","kev_date_added":null,"published":"2019-12-26"},{"cvss_score":5.4,"headline":"Cross-site scripting in PowerCMS (PowerCMS 4 Series)","id":"CVE-2023-49117","kev_date_added":null,"published":"2023-12-26"},{"cvss_score":5.3,"headline":"Cross-site scripting in PowerCMS","id":"CVE-2025-36563","kev_date_added":null,"published":"2025-07-31"}],"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":"2024-08-03","vendors":["Alfasado Inc."]},"summary":"Remote attackers can execute arbitrary OS commands via the PowerCMS XMLRPC API, requiring immediate upgrades to secure versions.","url":"https://insights.sbomify.com/CVE-2021-20850/"}