{"answers":{"affected":"2 open source packages ship an affected version, including baserproject/basercms. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-18943 in the wild and no public exploit code.","fix":"Upgrade baserproject/basercms to 4.1.4 or later.","what":"CVE-2018-18943 is a medium-severity cross-site scripting vulnerability in Basercms Basercms, published on 5 Nov 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-18943 and fix it if it is affected.\n\nWhat it is: CVE-2018-18943 is a medium-severity cross-site scripting vulnerability in Basercms Basercms, published on 5 Nov 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2018-18943 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- baserproject/basercms (Packagist): affected all versions; fixed in 4.1.4\n- baserproject/basercms (Packagist): affected all versions; fixed in 4.1.4\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-2018-18943/ (Markdown: https://insights.sbomify.com/CVE-2018-18943/index.md)","id":"CVE-2018-18943","markdown":"https://insights.sbomify.com/CVE-2018-18943/index.md","name":"CVE-2018-18943","record":{"aliases":["GHSA-fx2m-5m9v-jhgp"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"baserCMS","requires_auth":"high_privilege","summary":"An attacker can inject malicious scripts via the category name field in the Upload menu, potentially compromising admin sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"basercms","vendor":"basercms"}],"cvss":{"score":4.8,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"An issue was discovered in baserCMS before 4.1.4. In the Register New Category feature of the Upload menu, the category name can be used for XSS via the data[UploaderCategory][name] parameter to an admin/uploader/uploader_categories/edit URI.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"XSS in baserCMS before 4.1.4","id":"CVE-2018-18943","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"basercms:basercms","products":["basercms:basercms"],"type":"xss","year":"2018"},"n_packages":2,"n_references":2,"next":{"headline":"Memory corruption in n/a","id":"CVE-2018-18944"},"packages":[{"ecosystem":"Packagist","fixed":["4.1.4"],"introduced":["0"],"last_affected":[],"package":"baserproject/basercms","purl":null,"source":"GHSA-fx2m-5m9v-jhgp"},{"ecosystem":"Packagist","fixed":["4.1.4"],"introduced":["0"],"last_affected":[],"package":"baserproject/basercms","purl":"pkg:composer/baserproject/basercms","source":"GHSA-fx2m-5m9v-jhgp"}],"prev":{"headline":"RCE in baserCMS before 4.1.4","id":"CVE-2018-18942"},"products":["n/a"],"published":"2018-11-05","related":[{"cvss_score":9.8,"headline":"baserCMS File Uploader Remote Code Execution (RCE) vulnerability","id":"CVE-2023-25654","kev_date_added":null,"published":"2023-03-23"},{"cvss_score":9.8,"headline":"baserCMS allows any file to be uploaded","id":"CVE-2023-25655","kev_date_added":null,"published":"2023-03-23"},{"cvss_score":9.8,"headline":"baserCMS SQL Injection vulnerability","id":"CVE-2017-10842","kev_date_added":null,"published":"2017-08-28"},{"cvss_score":9.2,"headline":"baserCMS: OS command injection vulnerability in installer","id":"CVE-2026-30880","kev_date_added":null,"published":"2026-03-31"},{"cvss_score":9.1,"headline":"baserCMS: OS Command Injection Leading to Remote Code Execution (RCE)","id":"CVE-2026-21861","kev_date_added":null,"published":"2026-03-31"},{"cvss_score":9.1,"headline":"baserCMS: OS Command Injection in the baserCMS Update Functionality","id":"CVE-2026-30877","kev_date_added":null,"published":"2026-03-31"},{"cvss_score":9.1,"headline":"OS Command Injection Vulnerability and Potential Zip Slip Vulnerability","id":"CVE-2021-41243","kev_date_added":null,"published":"2021-11-26"}],"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":"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":"2024-08-05","vendors":["n/a"]},"summary":"An attacker can inject malicious scripts via the category name field in the Upload menu, potentially compromising admin sessions.","url":"https://insights.sbomify.com/CVE-2018-18943/"}