{"answers":{"affected":"3 open source packages ship an affected version, including postorius. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-40347 in the wild and no public exploit code.","fix":"Upgrade postorius to 1.3.5 or later.","what":"CVE-2021-40347 is a medium-severity vulnerability in n/a, published on 10 Sep 2021."},"fix_prompt":"Check this codebase for CVE-2021-40347 and fix it if it is affected.\n\nWhat it is: CVE-2021-40347 is a medium-severity vulnerability in n/a, published on 10 Sep 2021. \nExploitation: There is no known exploitation of CVE-2021-40347 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- postorius (PyPI): affected all versions; fixed in 1.3.5\n- postorius (PyPI): affected all versions; fixed in 1.3.5\n- postorius (PyPI): affected all versions; fixed in 1.3.5\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-2021-40347/ (Markdown: https://insights.sbomify.com/CVE-2021-40347/index.md)","id":"CVE-2021-40347","markdown":"https://insights.sbomify.com/CVE-2021-40347/index.md","name":"CVE-2021-40347","record":{"aliases":["DEBIAN-CVE-2021-40347","DSA-4970-1","GHSA-v83x-78q3-gr2j","PYSEC-2021-319","UBUNTU-CVE-2021-40347","USN-5157-1"],"analysis":null,"analysis_generated_by":null,"assigner":"mitre","cpe":[{"product":"postorius","vendor":"postorius_project"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[],"description":"An issue was discovered in views/list.py in GNU Mailman Postorius before 1.3.5. An attacker (logged into any account) can send a crafted POST request to unsubscribe any user from a mailing list, also revealing whether that address was subscribed in the first place.","ecosystems":["PyPI"],"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":"GNU Mailman Postorius Access Control Issues","id":"CVE-2021-40347","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2021"},"n_packages":3,"n_references":6,"next":{"headline":"Code injection in n/a","id":"CVE-2021-40348"},"packages":[{"ecosystem":"PyPI","fixed":["1.3.5"],"introduced":["0"],"last_affected":[],"package":"postorius","purl":null,"source":"GHSA-v83x-78q3-gr2j"},{"ecosystem":"PyPI","fixed":["1.3.5"],"introduced":["0"],"last_affected":[],"package":"postorius","purl":"pkg:pypi/postorius","source":"GHSA-v83x-78q3-gr2j"},{"ecosystem":"PyPI","fixed":["1.3.5"],"introduced":["0"],"last_affected":[],"package":"postorius","purl":"pkg:pypi/postorius","source":"PYSEC-2021-319"}],"prev":{"headline":"Integer overflow in n/a","id":"CVE-2021-40346"},"products":["n/a"],"published":"2021-09-10","related":[{"cvss_score":7.2,"headline":"Postorius is vulnerable to XSS","id":"CVE-2026-44742","kev_date_added":null,"published":"2026-05-07"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2021-40347/"}