{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-13164 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-13164 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-13164 is a high-severity missing authorization vulnerability in Mailerup, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-13164 and fix it if it is affected.\n\nWhat it is: CVE-2026-13164 is a high-severity missing authorization vulnerability in Mailerup, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-13164 in the wild and no public exploit code.\n\nAffected product: Mailerup. 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-2026-13164/ (Markdown: https://insights.sbomify.com/CVE-2026-13164/index.md)","id":"CVE-2026-13164","markdown":"https://insights.sbomify.com/CVE-2026-13164/index.md","name":"CVE-2026-13164","record":{"aliases":["GHSA-cwqp-w2pg-8772"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MailerUp email service","requires_auth":"none","summary":"Unauthenticated attackers can self-register accounts to read all stored emails due to missing authorization checks in the registration endpoint.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Secur0","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"Missing Authentication for Critical Function (CWE-306) in the RegisterView (apps/accounts/views.py), exposed at POST /api/auth/register/, in MailerUp \u003c1.0.1 allows a remote, unauthenticated attacker to self-register a working account on instances where registration is intended to be restricted, because the endpoint applies the AllowAny permission with no email verification, CAPTCHA, or administrator approval. Any account created this way can read all email stored by the instance, resulting in full disclosure of stored messages to an arbitrary unauthenticated attacker","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Unauthenticated self-registration in MailerUp allows access to stored email data","id":"CVE-2026-13164","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Remote Code Execution in SzafirHost","id":"CVE-2026-13165"},"packages":[],"prev":{"headline":"Lack of input validation in Mailerup input parameter leads to Open Redirect","id":"CVE-2026-13163"},"products":["Mailerup"],"published":"2026-06-24","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-24","vendors":["Mailerup"]},"summary":"Unauthenticated attackers can self-register accounts to read all stored emails due to missing authorization checks in the registration endpoint.","url":"https://insights.sbomify.com/CVE-2026-13164/"}