{"answers":{"affected":"2 open source packages ship an affected version, including pressbooks/pressbooks. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-3271 in the wild and no public exploit code.","fix":"Upgrade pressbooks/pressbooks to 5.18.0 or later.","what":"CVE-2021-3271 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-3271 and fix it if it is affected.\n\nWhat it is: CVE-2021-3271 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-3271 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pressbooks/pressbooks (Packagist): affected all versions; fixed in 5.18.0\n- pressbooks/pressbooks (Packagist): affected all versions; fixed in 5.18.0\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-2021-3271/ (Markdown: https://insights.sbomify.com/CVE-2021-3271/index.md)","id":"CVE-2021-3271","markdown":"https://insights.sbomify.com/CVE-2021-3271/index.md","name":"CVE-2021-3271","record":{"aliases":["GHSA-9652-78hp-w58c"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"PressBooks publishing platform","requires_auth":"high_privilege","summary":"Attackers can inject malicious scripts via the Book Info Long Description field, leading to code execution or account takeover when users view the book.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"pressbooks","vendor":"pressbooks"}],"cvss":{"score":4.8,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:H/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":"PressBooks 5.17.3 contains a cross-site scripting (XSS). Stored XSS can be submitted via the Book Info's Long Description Body, and all actions to open or preview the books page will result in the triggering the stored XSS.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Stored cross-site scripting in PressBooks","id":"CVE-2021-3271","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"xss","year":"2021"},"n_packages":2,"n_references":3,"next":{"headline":"Memory corruption in n/a","id":"CVE-2021-3272"},"packages":[{"ecosystem":"Packagist","fixed":["5.18.0"],"introduced":["0"],"last_affected":[],"package":"pressbooks/pressbooks","purl":null,"source":"GHSA-9652-78hp-w58c"},{"ecosystem":"Packagist","fixed":["5.18.0"],"introduced":["0"],"last_affected":[],"package":"pressbooks/pressbooks","purl":"pkg:composer/pressbooks/pressbooks","source":"GHSA-9652-78hp-w58c"}],"prev":{"headline":"File upload in n/a","id":"CVE-2021-3267"},"products":["n/a"],"published":"2021-01-22","related":[],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can inject malicious scripts via the Book Info Long Description field, leading to code execution or account takeover when users view the book.","url":"https://insights.sbomify.com/CVE-2021-3271/"}