{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-20391 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-20391 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-20391 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Jun 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-2020-20391 and fix it if it is affected.\n\nWhat it is: CVE-2020-20391 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Jun 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-2020-20391 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2020-20391/ (Markdown: https://insights.sbomify.com/CVE-2020-20391/index.md)","id":"CVE-2020-20391","markdown":"https://insights.sbomify.com/CVE-2020-20391/index.md","name":"CVE-2020-20391","record":{"aliases":["GHSA-7x6v-w562-gm77"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"GetSimple CMS","requires_auth":"low_privilege","summary":"An attacker can inject malicious scripts into GetSimple CMS snippets, potentially leading to session hijacking or arbitrary code execution.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"getsimplecms","vendor":"get-simple"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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 vulnerability in GetSimpleCMS 3.4.0a in admin/snippets.php via (1) Add Snippet and (2) Save snippets.","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":"Cross-site scripting in n/a","id":"CVE-2020-20391","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"SQL injection in n/a","id":"CVE-2020-20392"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2020-20389"},"products":["n/a"],"published":"2021-06-23","related":[{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2023-46042","kev_date_added":null,"published":"2023-10-19"},{"cvss_score":9.1,"headline":"Path traversal in n/a","id":"CVE-2020-18191","kev_date_added":null,"published":"2020-10-02"},{"cvss_score":8.7,"headline":"GetSimple CMS 3.2.1 Authenticated RCE via Arbitrary PHP File Upload","id":"CVE-2013-10032","kev_date_added":null,"published":"2025-07-25"},{"cvss_score":8.6,"headline":"GetSimple CMS My SMTP Contact Plugin 1.1.2 - PHP Code Injection","id":"CVE-2021-47778","kev_date_added":null,"published":"2026-01-21"},{"cvss_score":8.5,"headline":"GetSimple CMS Custom JS 0.1 - CSRF to XSS to RCE","id":"CVE-2021-47860","kev_date_added":null,"published":"2026-01-21"},{"cvss_score":7.2,"headline":"File upload in n/a","id":"CVE-2021-28976","kev_date_added":null,"published":"2021-06-23"},{"cvss_score":6.9,"headline":"GetSimpleCMS profile.php cross-site request forgery","id":"CVE-2024-11125","kev_date_added":null,"published":"2024-11-12"}],"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":"2024-08-04","vendors":["n/a"]},"summary":"An attacker can inject malicious scripts into GetSimple CMS snippets, potentially leading to session hijacking or arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2020-20391/"}