{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-30146 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-30146 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-30146 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Apr 2021. 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-2021-30146 and fix it if it is affected.\n\nWhat it is: CVE-2021-30146 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Apr 2021. 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-2021-30146 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-30146/ (Markdown: https://insights.sbomify.com/CVE-2021-30146/index.md)","id":"CVE-2021-30146","markdown":"https://insights.sbomify.com/CVE-2021-30146/index.md","name":"CVE-2021-30146","record":{"aliases":["GHSA-pj73-7h6v-vg38","UBUNTU-CVE-2021-30146"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Seafile file sync","requires_auth":"low_privilege","summary":"Attackers can inject persistent scripts via library sharing features, potentially stealing user sessions or executing malicious code in victim browsers.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"seafile","vendor":"seafile"}],"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":"Seafile 7.0.5 (2019) allows Persistent XSS via the \"share of library functionality.\"","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2021-04-06","github_poc":1,"max_poc_stars":2,"metasploit":0,"nuclei":0,"refs":[{"date":"2021-04-06T09:16:37Z","kind":"github_poc","ref":"https://github.com/Security-AVS/CVE-2021-30146","stars":2,"title":"Seafile 7.0.5 Persistent XSS"}],"tier":"poc_unverified"},"has_fix":false,"headline":"Cross-site scripting in n/a","id":"CVE-2021-30146","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site request forgery in n/a","id":"CVE-2021-30147"},"packages":[],"prev":{"headline":"Code injection in n/a","id":"CVE-2021-30145"},"products":["n/a"],"published":"2021-04-06","related":[{"cvss_score":7.5,"headline":"Weak cryptography in n/a","id":"CVE-2013-7469","kev_date_added":null,"published":"2019-02-21"},{"cvss_score":6.1,"headline":"Open redirect in n/a","id":"CVE-2023-28874","kev_date_added":null,"published":"2023-12-09"},{"cvss_score":5.4,"headline":"Cross-site scripting in n/a","id":"CVE-2023-28873","kev_date_added":null,"published":"2023-12-09"},{"cvss_score":5.1,"headline":"Multiple vulnerabilities in Seafile","id":"CVE-2025-41079","kev_date_added":null,"published":"2025-12-04"},{"cvss_score":5.1,"headline":"Multiple vulnerabilities in Seafile","id":"CVE-2025-41080","kev_date_added":null,"published":"2025-12-04"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can inject persistent scripts via library sharing features, potentially stealing user sessions or executing malicious code in victim browsers.","url":"https://insights.sbomify.com/CVE-2021-30146/"}