{"answers":{"affected":"2 open source packages ship an affected version, including mantisbt/mantisbt. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-16266 in the wild and no public exploit code.","fix":"Upgrade mantisbt/mantisbt to 2.24.2 or later.","what":"CVE-2020-16266 is a medium-severity cross-site scripting vulnerability in Mantisbt Mantisbt, published on 12 Aug 2020. 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-2020-16266 and fix it if it is affected.\n\nWhat it is: CVE-2020-16266 is a medium-severity cross-site scripting vulnerability in Mantisbt Mantisbt, published on 12 Aug 2020. 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-2020-16266 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mantisbt/mantisbt (Packagist): affected from 2.1.0; fixed in 2.24.2\n- mantisbt/mantisbt (Packagist): affected from 2.1.0; fixed in 2.24.2\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-2020-16266/ (Markdown: https://insights.sbomify.com/CVE-2020-16266/index.md)","id":"CVE-2020-16266","markdown":"https://insights.sbomify.com/CVE-2020-16266/index.md","name":"CVE-2020-16266","record":{"aliases":["GHSA-4rrc-5vp6-m3f6"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"MantisBT bug tracker","requires_auth":"low_privilege","summary":"Remote attackers can inject arbitrary HTML via custom fields in MantisBT, potentially executing code in victims' browsers.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mantisbt","vendor":"mantisbt"}],"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":"An XSS issue was discovered in MantisBT before 2.24.2. Improper escaping on view_all_bug_page.php allows a remote attacker to inject arbitrary HTML into the page by saving it into a text Custom Field, leading to possible code execution in the browser of any user subsequently viewing the issue (if CSP settings allow it).","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":true,"headline":"MantisBT XSS issue on the view_all_bug_page.php","id":"CVE-2020-16266","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"mantisbt:mantisbt","products":["mantisbt:mantisbt"],"type":"xss","year":"2020"},"n_packages":2,"n_references":2,"next":{"headline":"SQL injection in n/a","id":"CVE-2020-16267"},"packages":[{"ecosystem":"Packagist","fixed":["2.24.2"],"introduced":["2.1.0"],"last_affected":[],"package":"mantisbt/mantisbt","purl":null,"source":"GHSA-4rrc-5vp6-m3f6"},{"ecosystem":"Packagist","fixed":["2.24.2"],"introduced":["2.1.0"],"last_affected":[],"package":"mantisbt/mantisbt","purl":"pkg:composer/mantisbt/mantisbt","source":"GHSA-4rrc-5vp6-m3f6"}],"prev":{"headline":"Winston 1.5.4 devices have a CORS configuration that trusts arbitrary origins.","id":"CVE-2020-16263"},"products":["n/a"],"published":"2020-08-12","related":[{"cvss_score":9.6,"headline":"MantisBT allows cross-site scripting (XSS) via crafted filename","id":"CVE-2019-15074","kev_date_added":null,"published":"2019-08-21"},{"cvss_score":9.3,"headline":"MantisBT SOAP API has an authentication bypass vulnerability on MySQL","id":"CVE-2026-30849","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":8.8,"headline":"MantisBT: Authentication bypass for some passwords due to PHP type juggling","id":"CVE-2025-47776","kev_date_added":null,"published":"2025-11-04"},{"cvss_score":8.8,"headline":"MantisBT allows arbitrary password reset","id":"CVE-2017-7615","kev_date_added":null,"published":"2017-04-16"},{"cvss_score":8.6,"headline":"MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation","id":"CVE-2026-33517","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":8.6,"headline":"MantisBT has Stored HTML Injection / XSS when displaying Tags in Timeline","id":"CVE-2026-33548","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":8.3,"headline":"MantisBT Host Header Injection vulnerability","id":"CVE-2024-23830","kev_date_added":null,"published":"2024-02-20"}],"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":"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":"2024-08-04","vendors":["n/a"]},"summary":"Remote attackers can inject arbitrary HTML via custom fields in MantisBT, potentially executing code in victims' browsers.","url":"https://insights.sbomify.com/CVE-2020-16266/"}