{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-25964 exists.","fix":"No fix has been published for CVE-2021-25964 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-25964 is a medium-severity cross-site scripting vulnerability in OzzieIsaacs calibreweb, published on 4 Oct 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-2021-25964 and fix it if it is affected.\n\nWhat it is: CVE-2021-25964 is a medium-severity cross-site scripting vulnerability in OzzieIsaacs calibreweb, published on 4 Oct 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-25964 exists.\n\nAffected product: OzzieIsaacs calibreweb. 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-2021-25964/ (Markdown: https://insights.sbomify.com/CVE-2021-25964/index.md)","id":"CVE-2021-25964","markdown":"https://insights.sbomify.com/CVE-2021-25964/index.md","name":"CVE-2021-25964","record":{"aliases":["GHSA-8gr4-jgmh-5g8w"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Calibre-web application","requires_auth":"low_privilege","summary":"An attacker with metadata edit access can inject JavaScript into the description field, leading to stored XSS when victims view the file.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Mend","cpe":[{"product":"calibre-web","vendor":"janeczku"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","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":"In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”. An attacker that has access to edit the metadata information, can inject JavaScript payload in the description field. When a victim tries to open the file, XSS will be triggered.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Stored Cross-Site Scripting (XSS) in Calibre-web via Description Field in Metadata","id":"CVE-2021-25964","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Calibre-web - Admin Account Takeover via Cross-Site Request Forgery (CSRF)","id":"CVE-2021-25965"},"packages":[],"prev":{"headline":"Shuup - Reflected XSS in Error Page","id":"CVE-2021-25963"},"products":["calibreweb"],"published":"2021-10-04","related":[{"cvss_score":9.8,"headline":"SQL injection in calibreweb","id":"CVE-2022-30765","kev_date_added":null,"published":"2022-05-16"},{"cvss_score":9.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2020-12627","kev_date_added":null,"published":"2020-05-04"},{"cvss_score":9.3,"headline":"Server-Side Request Forgery (SSRF) in janeczku/calibre-web","id":"CVE-2022-0990","kev_date_added":null,"published":"2022-04-04"},{"cvss_score":9.1,"headline":"Server-Side Request Forgery (SSRF) in janeczku/calibre-web","id":"CVE-2022-0767","kev_date_added":null,"published":"2022-03-07"},{"cvss_score":9,"headline":"Server-Side Request Forgery (SSRF) in janeczku/calibre-web","id":"CVE-2022-0939","kev_date_added":null,"published":"2022-04-04"},{"cvss_score":8.8,"headline":"Calibre-web - Admin Account Takeover via Cross-Site Request Forgery (CSRF)","id":"CVE-2021-25965","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":8.5,"headline":"Cross-site Scripting (XSS) - Reflected in janeczku/calibre-web","id":"CVE-2022-0352","kev_date_added":null,"published":"2022-01-28"}],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-30","vendors":["OzzieIsaacs"]},"summary":"An attacker with metadata edit access can inject JavaScript into the description field, leading to stored XSS when victims view the file.","url":"https://insights.sbomify.com/CVE-2021-25964/"}