{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37237 exists.","fix":"No fix has been published for CVE-2020-37237 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-37237 is a medium-severity cross-site scripting vulnerability in Composr CMS, published on 16 May 2026. 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-2020-37237 and fix it if it is affected.\n\nWhat it is: CVE-2020-37237 is a medium-severity cross-site scripting vulnerability in Composr CMS, published on 16 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37237 exists.\n\nAffected product: Composr CMS. 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-2020-37237/ (Markdown: https://insights.sbomify.com/CVE-2020-37237/index.md)","id":"CVE-2020-37237","markdown":"https://insights.sbomify.com/CVE-2020-37237/index.md","name":"CVE-2020-37237","record":{"aliases":["GHSA-85qg-778w-mp8h"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Composr CMS","requires_auth":"low_privilege","summary":"Authenticated administrators can inject persistent XSS payloads via banner descriptions, executing scripts for all website visitors.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Composr CMS 10.0.34 contains a persistent cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts through the banner management interface. Attackers with admin credentials can inject XSS payloads in the Description field of the Add banner functionality, which execute for all website visitors when they access the home page.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Composr CMS 10.0.34 Persistent Cross-Site Scripting via banners","id":"CVE-2020-37237","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2020"},"n_packages":0,"n_references":4,"next":{"headline":"CMS Made Simple 2.2.15 Stored XSS via SVG File Upload","id":"CVE-2020-37238"},"packages":[],"prev":{"headline":"NewsLister Authenticated Persistent Cross-Site Scripting via Admin Panel","id":"CVE-2020-37236"},"products":["Composr CMS"],"published":"2026-05-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-24","vendors":["Compo"]},"summary":"Authenticated administrators can inject persistent XSS payloads via banner descriptions, executing scripts for all website visitors.","url":"https://insights.sbomify.com/CVE-2020-37237/"}