{"answers":{"affected":"3 open source packages ship an affected version, including calibreweb. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-3988 exists.","fix":"Upgrade calibreweb to 0.6.15 or later.","what":"CVE-2021-3988 is a medium-severity cross-site scripting vulnerability in janeczku/calibre-web, published on 15 Nov 2024. 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-2021-3988 and fix it if it is affected.\n\nWhat it is: CVE-2021-3988 is a medium-severity cross-site scripting vulnerability in janeczku/calibre-web, published on 15 Nov 2024. 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-2021-3988 exists.\n\nAffected packages and fixed versions:\n- calibreweb (PyPI): affected all versions; fixed in 0.6.15\n- calibreweb (PyPI): affected all versions; fixed in 0.6.15\n- calibreweb (PyPI): affected all versions; fixed in 0.6.15\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-2021-3988/ (Markdown: https://insights.sbomify.com/CVE-2021-3988/index.md)","id":"CVE-2021-3988","markdown":"https://insights.sbomify.com/CVE-2021-3988/index.md","name":"CVE-2021-3988","record":{"aliases":["GHSA-r735-9gc6-2hvq","PYSEC-2026-1236"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Calibre-web","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary JavaScript via unsanitized input in book editing features, potentially stealing cookies.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"@huntr_ai","cpe":[{"product":"calibre-web","vendor":"janeczku"}],"cvss":{"score":5.7,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","version":"3.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"A Cross-site Scripting (XSS) vulnerability exists in janeczku/calibre-web, specifically in the file `edit_books.js`. The vulnerability occurs when editing book properties, such as uploading a cover or a format. The affected code directly inserts user input into the DOM without proper sanitization, allowing attackers to execute arbitrary JavaScript code. This can lead to various attacks, including stealing cookies. The issue is present in the code handling the `#btn-upload-cover` change event.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Cross-site Scripting (XSS) in janeczku/calibre-web","id":"CVE-2021-3988","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"xss","year":"2021"},"n_packages":3,"n_references":2,"next":{"headline":"Open Redirect in star7th/showdoc","id":"CVE-2021-3989"},"packages":[{"ecosystem":"PyPI","fixed":["0.6.15"],"introduced":["0"],"last_affected":[],"package":"calibreweb","purl":null,"source":"GHSA-r735-9gc6-2hvq"},{"ecosystem":"PyPI","fixed":["0.6.15"],"introduced":["0"],"last_affected":[],"package":"calibreweb","purl":"pkg:pypi/calibreweb","source":"GHSA-r735-9gc6-2hvq"},{"ecosystem":"PyPI","fixed":["0.6.15"],"introduced":["0"],"last_affected":[],"package":"calibreweb","purl":"pkg:pypi/calibreweb","source":"PYSEC-2026-1236"}],"prev":{"headline":"Improper Access Control in janeczku/calibre-web","id":"CVE-2021-3987"},"products":["janeczku/calibre-web"],"published":"2024-11-15","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":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2024-11-20","vendors":["janeczku"]},"summary":"Attackers can execute arbitrary JavaScript via unsanitized input in book editing features, potentially stealing cookies.","url":"https://insights.sbomify.com/CVE-2021-3988/"}