{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-5963 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-5963 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-5963 is a medium-severity vulnerability in Postbox, published on 20 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-5963 and fix it if it is affected.\n\nWhat it is: CVE-2025-5963 is a medium-severity vulnerability in Postbox, published on 20 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-5963 in the wild and no public exploit code.\n\nAffected product: Postbox. 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-2025-5963/ (Markdown: https://insights.sbomify.com/CVE-2025-5963/index.md)","id":"CVE-2025-5963","markdown":"https://insights.sbomify.com/CVE-2025-5963/index.md","name":"CVE-2025-5963","record":{"aliases":["GHSA-jg7f-3jqj-8gj5"],"analysis":{"component_type":"desktop_application","fix_type":"end_of_life","impacts":["security_bypass","data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"macOS email client","requires_auth":"low_privilege","summary":"Local attackers can inject code into Postbox to bypass macOS TCC privacy controls and access user data, as the software is discontinued and unpatched.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-276","name":"Incorrect Default Permissions"}],"description":"The Postbox's configuration on macOS, specifically the presence of entitlements: \"com.apple.security.cs.allow-dyld-environment-variables\" and \"com.apple.security.cs.disable-library-validation\" allows for Dynamic Library (Dylib) injection. A local attacker with unprivileged access can use environment variables like DYLD_INSERT_LIBRARIES to successfully inject code in application's context and bypass Transparency, Consent, and Control (TCC). Acquired resource access is limited to previously granted permissions by the user. Access to other resources beyond granted-permissions requires user interaction with a system prompt asking for permission.\n\nThe original company behind Postbox is no longer operational, the software will no longer receive updates. The acquiring company (em Client) did not cooperate in vulnerability disclosure.","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":"TCC Bypass via Dylib Injection in Postbox","id":"CVE-2025-5963","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"Path traversal in M-Files API","id":"CVE-2025-5964"},"packages":[],"prev":{"headline":"Rhel-lightspeed: improper access control in lightspeed history management allows local privilege manipulation","id":"CVE-2025-5962"},"products":["Postbox"],"published":"2025-06-20","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-06-20","vendors":["Postbox"]},"summary":"Local attackers can inject code into Postbox to bypass macOS TCC privacy controls and access user data, as the software is discontinued and unpatched.","url":"https://insights.sbomify.com/CVE-2025-5963/"}