{"answers":{"affected":"2 open source packages ship an affected version, including limesurvey/limesurvey.","exploited":"There is no known exploitation of CVE-2026-50635 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-50635 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-50635 is a high-severity vulnerability in LimeSurvey, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-50635 and fix it if it is affected.\n\nWhat it is: CVE-2026-50635 is a high-severity vulnerability in LimeSurvey, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-50635 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- limesurvey/limesurvey (Packagist): affected all versions up to 7.0.0-beta1; no fix listed\n- limesurvey/limesurvey (Packagist): affected all versions up to 7.0.0-beta1; no fix listed\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-2026-50635/ (Markdown: https://insights.sbomify.com/CVE-2026-50635/index.md)","id":"CVE-2026-50635","markdown":"https://insights.sbomify.com/CVE-2026-50635/index.md","name":"CVE-2026-50635","record":{"aliases":["GHSA-5c37-5j7w-8mh8"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"LimeSurvey survey tool","requires_auth":"none","summary":"Attacker exploits Host header injection in password reset emails to steal reset tokens and take over user accounts.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-640","name":"Weak Password Recovery Mechanism for Forgotten Password"}],"description":"LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default (and documented) configuration, so LSHttpRequest::checkIsAllowedHost() results in no operation. A remote, unauthenticated attacker who submits a forgotten-password request for a known account (requiring only the target's username and email) with a spoofed Host header causes LimeSurvey to email that account a reset link whose hostname is attacker-controlled while embedding the genuine validation_key. When the recipient or an automated inbound mail-security link scanner dereferences the link, the valid reset token is disclosed to the attacker, who replays it against the legitimate host's newPassword endpoint to set a new password and take over the account.","ecosystems":["Packagist"],"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":"LimeSurvey Password Reset Host Header Injection Discloses Reset Token","id":"CVE-2026-50635","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"LimeSurvey RemoteControl invite_participants/remind_participants SQL Injection","id":"CVE-2026-50636"},"packages":[{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["7.0.0-beta1"],"package":"limesurvey/limesurvey","purl":null,"source":"GHSA-5c37-5j7w-8mh8"},{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["7.0.0-beta1"],"package":"limesurvey/limesurvey","purl":"pkg:composer/limesurvey/limesurvey","source":"GHSA-5c37-5j7w-8mh8"}],"prev":{"headline":"Apache CXF: WS JSON request filter trusts metadata from an unvalidated first signature entry","id":"CVE-2026-50634"},"products":["LimeSurvey"],"published":"2026-06-09","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["LimeSurvey"]},"summary":"Attacker exploits Host header injection in password reset emails to steal reset tokens and take over user accounts.","url":"https://insights.sbomify.com/CVE-2026-50635/"}