{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53933 exists.","fix":"No fix has been published for CVE-2023-53933 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-53933 is a high-severity vulnerability in S9y Serendipity, 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-2023-53933 and fix it if it is affected.\n\nWhat it is: CVE-2023-53933 is a high-severity vulnerability in S9y Serendipity, 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-2023-53933 exists.\n\nAffected product: S9y Serendipity. 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-2023-53933/ (Markdown: https://insights.sbomify.com/CVE-2023-53933/index.md)","id":"CVE-2023-53933","markdown":"https://insights.sbomify.com/CVE-2023-53933/index.md","name":"CVE-2023-53933","record":{"aliases":["GHSA-87vx-4xf9-32hg"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Serendipity blog software","requires_auth":"low_privilege","summary":"Authenticated attackers can upload malicious PHP files to execute arbitrary commands on the server.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"serendipity","vendor":"s9y"}],"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":"Serendipity 2.4.0 contains a remote code execution vulnerability that allows authenticated attackers to upload malicious PHP files with .phar extension. Attackers can upload files with system command payloads to the media upload endpoint and execute arbitrary commands on the server.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Serendipity 2.4.0 Authenticated Remote Code Execution via File Upload","id":"CVE-2023-53933","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"s9y:serendipity","products":["s9y:serendipity"],"type":"file_upload","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Kentico Xperience \u003c= 12.0.98 GetResource Handler Denial of Service","id":"CVE-2023-53934"},"packages":[],"prev":{"headline":"Serendipity 2.4.0 Stored Cross-Site Scripting via Admin Entry Creation","id":"CVE-2023-53932"},"products":["Serendipity"],"published":"2025-12-17","related":[{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2005-1449","kev_date_added":null,"published":"2005-05-03"},{"cvss_score":10,"headline":"Missing authorization in n/a","id":"CVE-2005-1452","kev_date_added":null,"published":"2005-05-03"},{"cvss_score":9.8,"headline":"File upload in n/a","id":"CVE-2020-10964","kev_date_added":null,"published":"2020-03-25"},{"cvss_score":9.8,"headline":"Cross-site scripting in n/a","id":"CVE-2011-1134","kev_date_added":null,"published":"2019-11-05"},{"cvss_score":9.8,"headline":"File upload in n/a","id":"CVE-2016-10752","kev_date_added":null,"published":"2019-05-24"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2016-10082","kev_date_added":null,"published":"2016-12-30"},{"cvss_score":8.8,"headline":"File upload in n/a","id":"CVE-2023-31576","kev_date_added":null,"published":"2023-05-16"}],"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":["s9y"]},"summary":"Authenticated attackers can upload malicious PHP files to execute arbitrary commands on the server.","url":"https://insights.sbomify.com/CVE-2023-53933/"}