{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53921 exists.","fix":"No fix has been published for CVE-2023-53921 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-53921 is a high-severity vulnerability in SitemagicCMS, published on 17 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-53921 and fix it if it is affected.\n\nWhat it is: CVE-2023-53921 is a high-severity vulnerability in SitemagicCMS, published on 17 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53921 exists.\n\nAffected product: SitemagicCMS. 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-2023-53921/ (Markdown: https://insights.sbomify.com/CVE-2023-53921/index.md)","id":"CVE-2023-53921","markdown":"https://insights.sbomify.com/CVE-2023-53921/index.md","name":"CVE-2023-53921","record":{"aliases":["GHSA-wjjc-cc9v-hq6j"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"SitemagicCMS","requires_auth":"low_privilege","summary":"Attackers can upload malicious PHP files to execute arbitrary system commands on SitemagicCMS installations.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"sitemagic_cms","vendor":"sitemagic"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"SitemagicCMS 4.4.3 contains a remote code execution vulnerability that allows attackers to upload malicious PHP files to the files/images directory. Attackers can upload a .phar file with system command execution payload to compromise the web application and execute arbitrary system commands.","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":"SitemagicCMS 4.4.3 Remote Code Execution via Unrestricted File Upload","id":"CVE-2023-53921","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"TinyWebGallery v2.5 Remote Code Execution via Unrestricted File Upload","id":"CVE-2023-53922"},"packages":[],"prev":{"headline":"PodcastGenerator Stored Cross-Site Scripting via Podcast Title Field","id":"CVE-2023-53920"},"products":["SitemagicCMS"],"published":"2025-12-17","related":[{"cvss_score":7.2,"headline":"File upload in n/a","id":"CVE-2019-9042","kev_date_added":null,"published":"2019-02-23"}],"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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-07","vendors":["Sitemagic"]},"summary":"Attackers can upload malicious PHP files to execute arbitrary system commands on SitemagicCMS installations.","url":"https://insights.sbomify.com/CVE-2023-53921/"}