{"answers":{"affected":"5 open source packages ship an affected version, including mediawiki/core and mediawiki. It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-25827 in the wild and no public exploit code.","fix":"Upgrade mediawiki/core to a fixed version for your release line: 1.31.9 or 1.34.3.","what":"CVE-2020-25827 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 27 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-25827 and fix it if it is affected.\n\nWhat it is: CVE-2020-25827 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 27 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-25827 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mediawiki/core (Packagist): affected from 1.31.0; fixed in 1.31.9\n- mediawiki/core (Packagist): affected from 1.31.0; fixed in 1.31.9\n- mediawiki/core (Packagist): affected from 1.32.0; fixed in 1.34.3\n- mediawiki/core (Packagist): affected from 1.32.0; fixed in 1.34.3\n- mediawiki (Bitnami): affected all versions; fixed in 1.31.10, 1.34.4\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-2020-25827/ (Markdown: https://insights.sbomify.com/CVE-2020-25827/index.md)","id":"CVE-2020-25827","markdown":"https://insights.sbomify.com/CVE-2020-25827/index.md","name":"CVE-2020-25827","record":{"aliases":["BIT-mediawiki-2020-25827","DEBIAN-CVE-2020-25827","GHSA-rqvj-fc2x-99q6","UBUNTU-CVE-2020-25827"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"MediaWiki OATHAuth extension","requires_auth":"none","summary":"Attackers can bypass OATH token rate limits in clustered MediaWiki environments, enabling brute-force attacks against two-factor authentication.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"mediawiki","vendor":"mediawiki"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-307","name":"Improper Restriction of Excessive Authentication Attempts"}],"description":"An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.","ecosystems":["Bitnami","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":"OATHAuth extension in MediaWiki is not implementing rate limit","id":"CVE-2020-25827","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"fedoraproject:fedora","products":["fedoraproject:fedora","mediawiki:mediawiki"],"type":"denial_of_service","year":"2020"},"n_packages":5,"n_references":4,"next":{"headline":"MediaWiki Cross-site Scripting (XSS) vulnerability","id":"CVE-2020-25828"},"packages":[{"ecosystem":"Bitnami","fixed":["1.31.10","1.34.4"],"introduced":["0","1.32.0"],"last_affected":[],"package":"mediawiki","purl":"pkg:bitnami/mediawiki","source":"BIT-mediawiki-2020-25827"},{"ecosystem":"Packagist","fixed":["1.31.9"],"introduced":["1.31.0"],"last_affected":[],"package":"mediawiki/core","purl":null,"source":"GHSA-rqvj-fc2x-99q6"},{"ecosystem":"Packagist","fixed":["1.31.9"],"introduced":["1.31.0"],"last_affected":[],"package":"mediawiki/core","purl":"pkg:composer/mediawiki/core","source":"GHSA-rqvj-fc2x-99q6"},{"ecosystem":"Packagist","fixed":["1.34.3"],"introduced":["1.32.0"],"last_affected":[],"package":"mediawiki/core","purl":null,"source":"GHSA-rqvj-fc2x-99q6"},{"ecosystem":"Packagist","fixed":["1.34.3"],"introduced":["1.32.0"],"last_affected":[],"package":"mediawiki/core","purl":"pkg:composer/mediawiki/core","source":"GHSA-rqvj-fc2x-99q6"}],"prev":{"headline":"Privilege escalation in n/a","id":"CVE-2020-25826"},"products":["n/a"],"published":"2020-09-27","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"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":"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":"Attackers can bypass OATH token rate limits in clustered MediaWiki environments, enabling brute-force attacks against two-factor authentication.","url":"https://insights.sbomify.com/CVE-2020-25827/"}