{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-66514 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-66514 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-66514 is a low-severity cross-site scripting vulnerability in nextcloud security-advisories, published on 5 Dec 2025. 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-2025-66514 and fix it if it is affected.\n\nWhat it is: CVE-2025-66514 is a low-severity cross-site scripting vulnerability in nextcloud security-advisories, published on 5 Dec 2025. 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-2025-66514 in the wild and no public exploit code.\n\nAffected product: nextcloud security-advisories. 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-2025-66514/ (Markdown: https://insights.sbomify.com/CVE-2025-66514/index.md)","id":"CVE-2025-66514","markdown":"https://insights.sbomify.com/CVE-2025-66514/index.md","name":"CVE-2025-66514","record":{"aliases":["GHSA-v394-8gpc-6fv5"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Nextcloud Mail app","requires_auth":"low_privilege","summary":"An authenticated user can inject HTML into email subjects in Nextcloud Mail, potentially altering the display of message lists.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"mail","vendor":"nextcloud"}],"cvss":{"score":3.5,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Prior to 5.5.3, a stored HTML injection in the Mail app's message list allowed an authenticated user to inject HTML into the email subjects. Javascript was correctly blocked by the content security policy of the Nextcloud Server 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":"Nextcloud Mail stored HTML injection in subject text","id":"CVE-2025-66514","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"Nextcloud Approval app allows users to request approval for other users file","id":"CVE-2025-66515"},"packages":[],"prev":{"headline":"Nextcloud Tables app share information not limited to relevant users","id":"CVE-2025-66513"},"products":["security-advisories"],"published":"2025-12-05","related":[{"cvss_score":8.8,"headline":"Missing permission check on email metadata retrieval","id":"CVE-2021-32652","kev_date_added":null,"published":"2021-06-01"},{"cvss_score":8.3,"headline":"Unauthenticated SSRF in 3rd party module \"cerdic/csstidy\"","id":"CVE-2022-31132","kev_date_added":null,"published":"2022-08-04"},{"cvss_score":8.2,"headline":"Nextcloud Mail auto configurator can be tricked into sending account information to wrong servers","id":"CVE-2024-52508","kev_date_added":null,"published":"2024-11-15"},{"cvss_score":5,"headline":"Blind SSRF via server URL input in the Nextcloud Mail app","id":"CVE-2023-23943","kev_date_added":null,"published":"2023-02-06"},{"cvss_score":4.3,"headline":"Require strict cookies for image proxy requests in Nextcloud Mail","id":"CVE-2023-45660","kev_date_added":null,"published":"2023-10-16"},{"cvss_score":4.3,"headline":"Bypass of image blocking in Nextcloud Mail","id":"CVE-2021-32707","kev_date_added":null,"published":"2021-07-12"},{"cvss_score":4.1,"headline":"IDOR Vulnerability in Nextcloud Mail","id":"CVE-2023-25160","kev_date_added":null,"published":"2023-02-13"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-08","vendors":["nextcloud"]},"summary":"An authenticated user can inject HTML into email subjects in Nextcloud Mail, potentially altering the display of message lists.","url":"https://insights.sbomify.com/CVE-2025-66514/"}