{"answers":{"affected":"2 open source packages ship an affected version, including joplin. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-28249 in the wild and no public exploit code.","fix":"Upgrade joplin to 1.3.11 or later.","what":"CVE-2020-28249 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Nov 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-28249 and fix it if it is affected.\n\nWhat it is: CVE-2020-28249 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Nov 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-28249 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- joplin (npm): affected all versions; fixed in 1.3.11\n- joplin (npm): affected all versions; fixed in 1.3.11\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-2020-28249/ (Markdown: https://insights.sbomify.com/CVE-2020-28249/index.md)","id":"CVE-2020-28249","markdown":"https://insights.sbomify.com/CVE-2020-28249/index.md","name":"CVE-2020-28249","record":{"aliases":["GHSA-q26w-wjj2-22vv"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Joplin desktop app","requires_auth":"none","summary":"Attackers can execute arbitrary scripts in Joplin desktop via malicious links in notes, potentially compromising user data.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"joplin","vendor":"joplin_project"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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":"Joplin 1.2.6 for Desktop allows XSS via a LINK element in a note.","ecosystems":["npm"],"exploits":{"exploitdb":1,"first_seen":"2020-11-09","github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[{"date":"2020-11-09","kind":"exploitdb","ref":"49024","stars":null,"title":"Joplin 1.2.6 - 'link' Cross Site Scripting"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Cross-site scripting in Joplin","id":"CVE-2020-28249","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2020"},"n_packages":2,"n_references":2,"next":{"headline":"Auth bypass in n/a","id":"CVE-2020-28250"},"packages":[{"ecosystem":"npm","fixed":["1.3.11"],"introduced":["0"],"last_affected":[],"package":"joplin","purl":null,"source":"GHSA-q26w-wjj2-22vv"},{"ecosystem":"npm","fixed":["1.3.11"],"introduced":["0"],"last_affected":[],"package":"joplin","purl":"pkg:npm/joplin","source":"GHSA-q26w-wjj2-22vv"}],"prev":{"headline":"Integer Overflow in png-img","id":"CVE-2020-28248"},"products":["n/a"],"published":"2020-11-06","related":[{"cvss_score":9.8,"headline":"Joplin Vulnerable to Code Injection","id":"CVE-2022-23340","kev_date_added":null,"published":"2022-02-08"},{"cvss_score":9.7,"headline":"Joplin has a parsing error leading to Cross-site Scripting (XSS)","id":"CVE-2024-40643","kev_date_added":null,"published":"2024-09-09"},{"cvss_score":8.9,"headline":"Arbitrary code execution on click of PDF links in Joplin","id":"CVE-2023-45673","kev_date_added":null,"published":"2024-06-21"},{"cvss_score":8.8,"headline":"Privilege escalation in Joplin server via user patch endpoint","id":"CVE-2025-27134","kev_date_added":null,"published":"2025-04-30"},{"cvss_score":8.2,"headline":"Safe mode Cross-site Scripting (XSS) vulnerability in Joplin","id":"CVE-2023-37898","kev_date_added":null,"published":"2024-06-21"},{"cvss_score":8.2,"headline":"Cross-site Scripting (XSS) when pasting HTML into the rich text editor in Joplin","id":"CVE-2023-38506","kev_date_added":null,"published":"2024-06-21"},{"cvss_score":8.2,"headline":"Cross site scripting (XSS) when clicking on an untrusted `\u003cmap\u003e` link in Joplin","id":"CVE-2023-39517","kev_date_added":null,"published":"2024-06-21"}],"sources":[{"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)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can execute arbitrary scripts in Joplin desktop via malicious links in notes, potentially compromising user data.","url":"https://insights.sbomify.com/CVE-2020-28249/"}