{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43677 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43677 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43677 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Jan 2022. 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-2021-43677 and fix it if it is affected.\n\nWhat it is: CVE-2021-43677 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Jan 2022. 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-2021-43677 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-43677/ (Markdown: https://insights.sbomify.com/CVE-2021-43677/index.md)","id":"CVE-2021-43677","markdown":"https://insights.sbomify.com/CVE-2021-43677/index.md","name":"CVE-2021-43677","record":{"aliases":["GHSA-m9f5-mpg3-vr8r"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Fluxbb forum","requires_auth":"none","summary":"Attackers can inject malicious scripts into Fluxbb forums, potentially stealing user sessions or executing code in victim browsers.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fluxbb","vendor":"fluxbb"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Fluxbb v1.4.12 is affected by a Cross Site Scripting (XSS) vulnerability.","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":"Cross-site scripting in n/a","id":"CVE-2021-43677","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Wechat-php-sdk is affected by a Cross Site Scripting vulnerability.","id":"CVE-2021-43678"},"packages":[],"prev":{"headline":"Path manipulation in matyhtf/framework","id":"CVE-2021-43676"},"products":["n/a"],"published":"2022-01-04","related":[{"cvss_score":9.8,"headline":"Security feature bypass in FluxBB","id":"CVE-2011-3621","kev_date_added":null,"published":"2020-01-22"},{"cvss_score":9.3,"headline":"Path traversal in n/a","id":"CVE-2014-9574","kev_date_added":null,"published":"2015-02-03"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2020-28873","kev_date_added":null,"published":"2021-03-17"},{"cvss_score":7.5,"headline":"SQL injection in n/a","id":"CVE-2014-10029","kev_date_added":null,"published":"2015-01-13"},{"cvss_score":5.8,"headline":"Open redirect in n/a","id":"CVE-2014-10030","kev_date_added":null,"published":"2015-01-13"},{"cvss_score":5.4,"headline":"Cross-site scripting in n/a","id":"CVE-2025-44110","kev_date_added":null,"published":"2025-05-15"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-07-09","vendors":["n/a"]},"summary":"Attackers can inject malicious scripts into Fluxbb forums, potentially stealing user sessions or executing code in victim browsers.","url":"https://insights.sbomify.com/CVE-2021-43677/"}