{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-35303 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-35303 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-35303 is a medium-severity cross-site scripting vulnerability in Zammad Zammad, published on 28 Jun 2021. 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-2021-35303 and fix it if it is affected.\n\nWhat it is: CVE-2021-35303 is a medium-severity cross-site scripting vulnerability in Zammad Zammad, published on 28 Jun 2021. 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-2021-35303 in the wild and no public exploit code.\n\nAffected product: Zammad Zammad. 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-2021-35303/ (Markdown: https://insights.sbomify.com/CVE-2021-35303/index.md)","id":"CVE-2021-35303","markdown":"https://insights.sbomify.com/CVE-2021-35303/index.md","name":"CVE-2021-35303","record":{"aliases":["GHSA-hwv7-wjc3-wjwc"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Zammad helpdesk","requires_auth":"none","summary":"Remote attackers can execute arbitrary web script or HTML via the User Avatar attribute in Zammad, potentially leading to session hijacking or data theft.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"zammad","vendor":"zammad"}],"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":"Cross Site Scripting (XSS) in Zammad 1.0.x up to 4.0.0 allows remote attackers to execute arbitrary web script or HTML via the User Avatar attribute.","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":"Cross-site scripting in n/a","id":"CVE-2021-35303","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"zammad:zammad","products":["zammad:zammad"],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Null dereference in n/a","id":"CVE-2021-35306"},"packages":[],"prev":{"headline":"Missing authorization in n/a","id":"CVE-2021-35302"},"products":["n/a"],"published":"2021-06-28","related":[{"cvss_score":8.7,"headline":"Zammad GmbH Zammad Session Fixation","id":"CVE-2026-102489","kev_date_added":"2026-10-02","published":"2026-09-30"},{"cvss_score":8.5,"headline":"Zammad GmbH Zammad Improper Privilege Management","id":"CVE-2026-102490","kev_date_added":"2026-10-02","published":"2026-09-30"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2022-48021","kev_date_added":null,"published":"2023-02-03"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2022-35490","kev_date_added":null,"published":"2022-08-08"},{"cvss_score":9.8,"headline":"Deserialization in n/a","id":"CVE-2021-42090","kev_date_added":null,"published":"2021-10-07"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-42094","kev_date_added":null,"published":"2021-10-07"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2020-26030","kev_date_added":null,"published":"2020-12-28"}],"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":["n/a"]},"summary":"Remote attackers can execute arbitrary web script or HTML via the User Avatar attribute in Zammad, potentially leading to session hijacking or data theft.","url":"https://insights.sbomify.com/CVE-2021-35303/"}