{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-31450 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-31450 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-31450 is a high-severity use after free vulnerability in Foxitsoftware Foxit Reader, published on 7 May 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-31450 and fix it if it is affected.\n\nWhat it is: CVE-2021-31450 is a high-severity use after free vulnerability in Foxitsoftware Foxit Reader, published on 7 May 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-31450 in the wild and no public exploit code.\n\nAffected product: Foxitsoftware Foxit Reader. 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-2021-31450/ (Markdown: https://insights.sbomify.com/CVE-2021-31450/index.md)","id":"CVE-2021-31450","markdown":"https://insights.sbomify.com/CVE-2021-31450/index.md","name":"CVE-2021-31450","record":{"aliases":["GHSA-wrjq-8ggv-28q8"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"PDF reader","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via malicious XFA forms in Foxit Reader, requiring user interaction to open a file or page.","user_interaction":"required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"foxit_reader","vendor":"foxitsoftware"},{"product":"phantompdf","vendor":"foxitsoftware"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of XFA forms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13084.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Use after free in Reader","id":"CVE-2021-31450","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"foxitsoftware:foxit_reader","products":["foxitsoftware:foxit_reader","foxitsoftware:phantompdf"],"type":"use_after_free","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Use after free in Reader","id":"CVE-2021-31451"},"packages":[],"prev":{"headline":"Use after free in Reader","id":"CVE-2021-31449"},"products":["Reader"],"published":"2021-05-07","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2021-33793","kev_date_added":null,"published":"2021-08-11"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2021-38568","kev_date_added":null,"published":"2021-08-11"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2021-38572","kev_date_added":null,"published":"2021-08-11"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2021-38573","kev_date_added":null,"published":"2021-08-11"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2021-38574","kev_date_added":null,"published":"2021-08-11"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2020-26534","kev_date_added":null,"published":"2020-10-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2020-26535","kev_date_added":null,"published":"2020-10-02"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Foxit"]},"summary":"Remote attackers can execute arbitrary code via malicious XFA forms in Foxit Reader, requiring user interaction to open a file or page.","url":"https://insights.sbomify.com/CVE-2021-31450/"}