{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31521 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-31521 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-31521 is a medium-severity cross-site scripting vulnerability in Trend Micro InterScan Web Security Virtual Appliance, published on 17 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-31521 and fix it if it is affected.\n\nWhat it is: CVE-2021-31521 is a medium-severity cross-site scripting vulnerability in Trend Micro InterScan Web Security Virtual Appliance, published on 17 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-31521 in the wild and no public exploit code.\n\nAffected product: Trend Micro InterScan Web Security Virtual Appliance. 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-2021-31521/ (Markdown: https://insights.sbomify.com/CVE-2021-31521/index.md)","id":"CVE-2021-31521","markdown":"https://insights.sbomify.com/CVE-2021-31521/index.md","name":"CVE-2021-31521","record":{"aliases":["GHSA-2fwg-qc8c-frhr"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Web Security Appliance","requires_auth":"low_privilege","summary":"Reflected XSS in Trend Micro InterScan Web Security Virtual Appliance allows attackers to execute scripts in user browsers via the Captive Portal.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"trendmicro","cpe":[{"product":"interscan_web_security_virtual_appliance","vendor":"trendmicro"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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":"Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected cross-site scripting (XSS) vulnerability in the product's Captive Portal.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Cross-site scripting in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2021-31521","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Apache Kylin unsafe class loading","id":"CVE-2021-31522"},"packages":[],"prev":{"headline":"Auth bypass in Trend Micro IM Security","id":"CVE-2021-31520"},"products":["Trend Micro InterScan Web Security Virtual Appliance"],"published":"2021-06-17","related":[{"cvss_score":9.9,"headline":"Command injection in n/a","id":"CVE-2016-9269","kev_date_added":null,"published":"2017-02-21"},{"cvss_score":9.8,"headline":"Auth bypass in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2020-8465","kev_date_added":null,"published":"2020-12-17"},{"cvss_score":9.8,"headline":"Command injection in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2020-8466","kev_date_added":null,"published":"2020-12-17"},{"cvss_score":9.8,"headline":"Memory corruption in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2020-28578","kev_date_added":null,"published":"2020-11-18"},{"cvss_score":9.8,"headline":"Auth bypass in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2020-8606","kev_date_added":null,"published":"2020-05-27"},{"cvss_score":8.8,"headline":"Cross-site request forgery in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2020-8461","kev_date_added":null,"published":"2020-12-17"},{"cvss_score":8.8,"headline":"Memory corruption in Trend Micro InterScan Web Security Virtual Appliance","id":"CVE-2020-28579","kev_date_added":null,"published":"2020-11-18"}],"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":"2024-08-03","vendors":["Trend Micro"]},"summary":"Reflected XSS in Trend Micro InterScan Web Security Virtual Appliance allows attackers to execute scripts in user browsers via the Captive Portal.","url":"https://insights.sbomify.com/CVE-2021-31521/"}