{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2011-5133 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2011-5133 yet. Limit exposure of the affected software until one is available.","what":"CVE-2011-5133 is a critical cross-site scripting vulnerability in Mybb Mybb, published on 30 Aug 2012. 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-2011-5133 and fix it if it is affected.\n\nWhat it is: CVE-2011-5133 is a critical cross-site scripting vulnerability in Mybb Mybb, published on 30 Aug 2012. 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-2011-5133 in the wild and no public exploit code.\n\nAffected product: Mybb Mybb. 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-2011-5133/ (Markdown: https://insights.sbomify.com/CVE-2011-5133/index.md)","id":"CVE-2011-5133","markdown":"https://insights.sbomify.com/CVE-2011-5133/index.md","name":"CVE-2011-5133","record":{"aliases":["GHSA-xxrm-wh3c-cfmr"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"MyBB forum software","requires_auth":"low_privilege","summary":"An unspecified vulnerability in MyBB allows attackers to inject malicious scripts via unparsed user avatars in the buddy list, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mybb","vendor":"mybb"}],"cvss":{"score":10,"severity":"critical","source":"nvd","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","version":"2.0"},"cwes":[],"description":"Unspecified vulnerability in MyBB before 1.6.5 has unknown impact and attack vectors, related to an \"unparsed user avatar in the buddy list.\"","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 n/a","id":"CVE-2011-5133","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"mybb:mybb","products":["mybb:mybb"],"type":"xss","year":"2011"},"n_packages":0,"n_references":4,"next":{"headline":"File upload in n/a","id":"CVE-2011-5134"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2011-5132"},"products":["n/a"],"published":"2012-08-30","related":[{"cvss_score":10,"headline":"myBB 1.6.4 Backdoor Arbitrary Command Execution","id":"CVE-2011-10018","kev_date_added":null,"published":"2025-08-13"},{"cvss_score":10,"headline":"Information disclosure in n/a","id":"CVE-2015-2786","kev_date_added":null,"published":"2015-03-29"},{"cvss_score":10,"headline":"SQL injection in n/a","id":"CVE-2006-0218","kev_date_added":null,"published":"2006-01-16"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2020-22612","kev_date_added":null,"published":"2023-09-01"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2017-16780","kev_date_added":null,"published":"2017-11-10"},{"cvss_score":8.8,"headline":"SQL injection in n/a","id":"CVE-2021-27890","kev_date_added":null,"published":"2021-03-15"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["n/a"]},"summary":"An unspecified vulnerability in MyBB allows attackers to inject malicious scripts via unparsed user avatars in the buddy list, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2011-5133/"}