{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-75872 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-75872 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-75872 is a medium-severity cross-site scripting vulnerability in maalfer MailerUp, published on 18 Aug 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-2026-75872 and fix it if it is affected.\n\nWhat it is: CVE-2026-75872 is a medium-severity cross-site scripting vulnerability in maalfer MailerUp, published on 18 Aug 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-2026-75872 in the wild and no public exploit code.\n\nAffected product: maalfer 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-2026-75872/ (Markdown: https://insights.sbomify.com/CVE-2026-75872/index.md)","id":"CVE-2026-75872","markdown":"https://insights.sbomify.com/CVE-2026-75872/index.md","name":"CVE-2026-75872","record":{"aliases":["GHSA-gj4p-rxxg-6jhm"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"MailerUp subscription form","requires_auth":"none","summary":"Unauthenticated attackers can inject arbitrary HTML into verification emails via the first_name field, potentially executing scripts in recipients' browsers.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Secur0","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-80","name":"Improper Neutralization of Script-Related HTML Tags in a Web Page"}],"description":"HTML Injection in the public subscription form in maalfer MailerUp before 1.1.3 allows unauthenticated remote attackers to have the application send a message carrying arbitrary HTML, to an attacker-chosen address and from the form owner's configured sending identity, via the first_name field of the subscription request, which is interpolated unescaped into the double opt-in verification email.","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":"HTML Injection in MailerUp double opt-in verification email","id":"CVE-2026-75872","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Zella Theme \u003c 2.6.3 - Unauthenticated Arbitrary File Upload","id":"CVE-2026-75873"},"packages":[],"prev":{"headline":"Server-Side Request Forgery (SSRF) in GitLab AI Gateway","id":"CVE-2026-75871"},"products":["MailerUp"],"published":"2026-08-18","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":"2026-08-18","vendors":["maalfer"]},"summary":"Unauthenticated attackers can inject arbitrary HTML into verification emails via the first_name field, potentially executing scripts in recipients' browsers.","url":"https://insights.sbomify.com/CVE-2026-75872/"}