{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-15164 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-15164 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-15164 is a critical authentication bypass vulnerability in InternationalScratchWiki mediawiki-scratch-login, published on 28 Aug 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-2020-15164 and fix it if it is affected.\n\nWhat it is: CVE-2020-15164 is a critical authentication bypass vulnerability in InternationalScratchWiki mediawiki-scratch-login, published on 28 Aug 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-2020-15164 in the wild and no public exploit code.\n\nAffected product: InternationalScratchWiki mediawiki-scratch-login. 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-2020-15164/ (Markdown: https://insights.sbomify.com/CVE-2020-15164/index.md)","id":"CVE-2020-15164","markdown":"https://insights.sbomify.com/CVE-2020-15164/index.md","name":"CVE-2020-15164","record":{"aliases":[],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki extension","requires_auth":"none","summary":"Attackers can bypass authentication and take over any account by manipulating underscores in usernames due to improper input handling in the Scratch Login extension.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"scratch_login","vendor":"scratch-wiki"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"in Scratch Login (MediaWiki extension) before version 1.1, any account can be logged into by using the same username with leading, trailing, or repeated underscore(s), since those are treated as whitespace and trimmed by MediaWiki. This affects all users on any wiki using this extension. Since version 1.1, comments by users whose usernames would be trimmed on MediaWiki are ignored when searching for the verification code.","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":"Authentication Bypass in Scratch Login (mediawiki-scratch-login)","id":"CVE-2020-15164","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Potentially tampered sources on Play Store for Chameleon Mini Live Debugger","id":"CVE-2020-15165"},"packages":[],"prev":{"headline":"Invalid root may become trusted root in The Update Framework (TUF)","id":"CVE-2020-15163"},"products":["mediawiki-scratch-login"],"published":"2020-08-28","related":[{"cvss_score":4.8,"headline":"Cross-site scripting in n/a","id":"CVE-2022-42985","kev_date_added":null,"published":"2022-11-17"}],"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":"2024-08-04","vendors":["InternationalScratchWiki"]},"summary":"Attackers can bypass authentication and take over any account by manipulating underscores in usernames due to improper input handling in the Scratch Login extension.","url":"https://insights.sbomify.com/CVE-2020-15164/"}