{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-3740 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-3740 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-3740 is a medium-severity authentication bypass vulnerability in chatwoot/chatwoot, published on 15 Nov 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-3740 and fix it if it is affected.\n\nWhat it is: CVE-2021-3740 is a medium-severity authentication bypass vulnerability in chatwoot/chatwoot, published on 15 Nov 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-3740 in the wild and no public exploit code.\n\nAffected product: chatwoot/chatwoot. 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-2021-3740/ (Markdown: https://insights.sbomify.com/CVE-2021-3740/index.md)","id":"CVE-2021-3740","markdown":"https://insights.sbomify.com/CVE-2021-3740/index.md","name":"CVE-2021-3740","record":{"aliases":["GHSA-7c75-4mxr-f248"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Chatwoot support platform","requires_auth":"low_privilege","summary":"Attackers can maintain unauthorized access via old session tokens after a user changes their password, requiring an upgrade to Chatwoot.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"@huntr_ai","cpe":[{"product":"chatwoot","vendor":"chatwoot"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:A/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-384","name":"Session Fixation"}],"description":"A Session Fixation vulnerability exists in chatwoot/chatwoot versions prior to 2.4.0. The application does not invalidate existing sessions on other devices when a user changes their password, allowing old sessions to persist. This can lead to unauthorized access if an attacker has obtained a session token.","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":"Session Fixation in chatwoot/chatwoot","id":"CVE-2021-3740","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Stored Cross-site Scripting (XSS) in chatwoot/chatwoot","id":"CVE-2021-3741"},"packages":[],"prev":{"headline":"Null dereference in kernel","id":"CVE-2021-3739"},"products":["chatwoot/chatwoot"],"published":"2024-11-15","related":[{"cvss_score":9.4,"headline":"Improper Restriction of Excessive Authentication Attempts in chatwoot/chatwoot","id":"CVE-2022-3741","kev_date_added":null,"published":"2022-10-28"},{"cvss_score":9.1,"headline":"Chatwoot has a Blind SQL-injection in Conversation and Contacts filters","id":"CVE-2025-21628","kev_date_added":null,"published":"2025-01-09"},{"cvss_score":8.8,"headline":"Cross-site Scripting (XSS) - DOM in chatwoot/chatwoot","id":"CVE-2022-0542","kev_date_added":null,"published":"2022-08-19"},{"cvss_score":8.1,"headline":"Cross-site Scripting (XSS) - Stored in chatwoot/chatwoot","id":"CVE-2022-1022","kev_date_added":null,"published":"2022-04-21"},{"cvss_score":7.9,"headline":"Server-Side Request Forgery (SSRF) in chatwoot/chatwoot","id":"CVE-2021-3742","kev_date_added":null,"published":"2024-11-15"},{"cvss_score":7.8,"headline":"Stored Cross-site Scripting (XSS) in chatwoot/chatwoot","id":"CVE-2021-3741","kev_date_added":null,"published":"2024-11-15"},{"cvss_score":7.6,"headline":"Improper Authorization in chatwoot/chatwoot","id":"CVE-2022-2901","kev_date_added":null,"published":"2022-09-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2024-11-15","vendors":["chatwoot"]},"summary":"Attackers can maintain unauthorized access via old session tokens after a user changes their password, requiring an upgrade to Chatwoot.","url":"https://insights.sbomify.com/CVE-2021-3740/"}