{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-4520 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-4520 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-4520 is a medium-severity cross-site scripting vulnerability in foliovision FV Flowplayer Video Player, published on 25 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-4520 and fix it if it is affected.\n\nWhat it is: CVE-2023-4520 is a medium-severity cross-site scripting vulnerability in foliovision FV Flowplayer Video Player, published on 25 Aug 2023. 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-2023-4520 in the wild and no public exploit code.\n\nAffected product: foliovision FV Flowplayer Video Player. 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-2023-4520/ (Markdown: https://insights.sbomify.com/CVE-2023-4520/index.md)","id":"CVE-2023-4520","markdown":"https://insights.sbomify.com/CVE-2023-4520/index.md","name":"CVE-2023-4520","record":{"aliases":["GHSA-v3w9-6427-5g27"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can inject scripts and modify user metadata in the FV Flowplayer Video Player WordPress plugin.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[{"product":"fv_flowplayer_video_player","vendor":"foliovision"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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":"The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘_fv_player_user_video’ parameter saved via the 'save' function hooked via init, and the plugin is also vulnerable to Arbitrary Usermeta Update via the 'save' function in versions up to, and including, 7.5.37.7212 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, and makes it possible to update the user metas arbitrarily, but the meta value can only be a string.","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":"Cross-site scripting in FV Flowplayer Video Player","id":"CVE-2023-4520","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Import XML and RSS Feeds \u003c 2.1.5 - Unauthenticated RCE","id":"CVE-2023-4521"},"packages":[],"prev":{"headline":"Denial of service in Relion670","id":"CVE-2023-4518"},"products":["FV Flowplayer Video Player"],"published":"2023-08-25","related":[{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2019-14801","kev_date_added":null,"published":"2019-08-09"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2019-13573","kev_date_added":null,"published":"2019-07-17"},{"cvss_score":8.8,"headline":"FV Player \u003c= 7.5.46.7212 - Authenticated (Subscriber+) SQL Injection via exclude Parameter","id":"CVE-2024-6338","kev_date_added":null,"published":"2024-07-19"},{"cvss_score":7.1,"headline":"WordPress FV Flowplayer Video Player Plugin \u003c= 7.5.32.7212 is vulnerable to Cross Site Scripting (XSS)","id":"CVE-2023-30499","kev_date_added":null,"published":"2023-08-18"},{"cvss_score":6.6,"headline":"WordPress FV Flowplayer Video Player plugin \u003c= 7.5.15.727 - SQL Injection (SQLi) vulnerability","id":"CVE-2022-25607","kev_date_added":null,"published":"2022-03-18"},{"cvss_score":6.1,"headline":"FV Flowplayer Video Player \u003c= 7.5.0.727 - 7.5.2.727 Reflected Cross-Site Scripting","id":"CVE-2021-39350","kev_date_added":null,"published":"2021-10-06"},{"cvss_score":6.1,"headline":"Cross-site scripting in n/a","id":"CVE-2019-14799","kev_date_added":null,"published":"2019-08-09"}],"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":"2026-04-08","vendors":["foliovision"]},"summary":"Unauthenticated attackers can inject scripts and modify user metadata in the FV Flowplayer Video Player WordPress plugin.","url":"https://insights.sbomify.com/CVE-2023-4520/"}