{"answers":{"affected":"1 open source package ship an affected version, including mediawiki. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-27957 in the wild and no public exploit code.","fix":"Upgrade mediawiki to 1.35.1 or later.","what":"CVE-2020-27957 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 28 Oct 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-2020-27957 and fix it if it is affected.\n\nWhat it is: CVE-2020-27957 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 28 Oct 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-2020-27957 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mediawiki (Bitnami): affected all versions; fixed in 1.35.1\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-2020-27957/ (Markdown: https://insights.sbomify.com/CVE-2020-27957/index.md)","id":"CVE-2020-27957","markdown":"https://insights.sbomify.com/CVE-2020-27957/index.md","name":"CVE-2020-27957","record":{"aliases":["BIT-mediawiki-2020-27957","GHSA-rpm7-qhmh-9jvh"],"analysis":{"component_type":"cms_plugin","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki extension","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via manipulated game titles in the RandomGameUnit extension, leading to stored XSS attacks on MediaWiki sites.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mediawiki","vendor":"mediawiki"}],"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":"The RandomGameUnit extension for MediaWiki through 1.35 was not properly escaping various title-related data. When certain varieties of games were created within MediaWiki, their names or titles could be manipulated to generate stored XSS within the RandomGameUnit extension.","ecosystems":["Bitnami"],"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":"Cross-site scripting in n/a","id":"CVE-2020-27957","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"mediawiki:mediawiki","products":["mediawiki:mediawiki"],"type":"xss","year":"2020"},"n_packages":1,"n_references":2,"next":{"headline":"Code injection in n/a","id":"CVE-2020-27958"},"packages":[{"ecosystem":"Bitnami","fixed":["1.35.1"],"introduced":["0"],"last_affected":[],"package":"mediawiki","purl":"pkg:bitnami/mediawiki","source":"BIT-mediawiki-2020-27957"}],"prev":{"headline":"File upload in n/a","id":"CVE-2020-27956"},"products":["n/a"],"published":"2020-10-28","related":[{"cvss_score":9.8,"headline":"Denial of service in n/a","id":"CVE-2023-37303","kev_date_added":null,"published":"2023-06-30"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2022-29904","kev_date_added":null,"published":"2022-04-29"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2022-29906","kev_date_added":null,"published":"2022-04-29"},{"cvss_score":9.8,"headline":"Business logic in n/a","id":"CVE-2022-28205","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2022-28206","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2022-28209","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"Business logic in n/a","id":"CVE-2021-36126","kev_date_added":null,"published":"2021-07-02"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can inject malicious scripts via manipulated game titles in the RandomGameUnit extension, leading to stored XSS attacks on MediaWiki sites.","url":"https://insights.sbomify.com/CVE-2020-27957/"}