{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47904 exists.","fix":"No fix has been published for CVE-2021-47904 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-47904 is a high-severity vulnerability in Phreesoft PhreeBooks, published on 23 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-47904 and fix it if it is affected.\n\nWhat it is: CVE-2021-47904 is a high-severity vulnerability in Phreesoft PhreeBooks, published on 23 Jan 2026. 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-2021-47904 exists.\n\nAffected product: Phreesoft PhreeBooks. 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-2021-47904/ (Markdown: https://insights.sbomify.com/CVE-2021-47904/index.md)","id":"CVE-2021-47904","markdown":"https://insights.sbomify.com/CVE-2021-47904/index.md","name":"CVE-2021-47904","record":{"aliases":["GHSA-xcxf-266c-6x5q"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"PhreeBooks accounting software","requires_auth":"low_privilege","summary":"Authenticated attackers can upload malicious PHP files via the Image Manager to execute arbitrary code on the server.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"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":"PhreeBooks 5.2.3 contains an authenticated file upload vulnerability in the Image Manager that allows remote code execution. Attackers can upload a malicious PHP web shell by exploiting unrestricted file type uploads to gain command execution 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":null,"headline":"PhreeBooks 5.2.3 - Remote Code Execution","id":"CVE-2021-47904","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2021"},"n_packages":0,"n_references":5,"next":{"headline":"MyBB Delete Account Plugin 1.4 - Cross-Site Scripting","id":"CVE-2021-47905"},"packages":[],"prev":{"headline":"LiteSpeed Web Server Enterprise 5.4.11 - Command Injection","id":"CVE-2021-47903"},"products":["PhreeBooks"],"published":"2026-01-23","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":"total"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["Phreesoft"]},"summary":"Authenticated attackers can upload malicious PHP files via the Image Manager to execute arbitrary code on the server.","url":"https://insights.sbomify.com/CVE-2021-47904/"}