{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-42551 exists.","fix":"No fix has been published for CVE-2021-42551 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-42551 is a medium-severity cross-site scripting vulnerability in AlCoda NetBiblio WebOPAC, published on 14 Jan 2022. 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-2021-42551 and fix it if it is affected.\n\nWhat it is: CVE-2021-42551 is a medium-severity cross-site scripting vulnerability in AlCoda NetBiblio WebOPAC, published on 14 Jan 2022. An attacker can exploit it over the internet without logging in, 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-2021-42551 exists.\n\nAffected product: AlCoda NetBiblio WebOPAC. 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-2021-42551/ (Markdown: https://insights.sbomify.com/CVE-2021-42551/index.md)","id":"CVE-2021-42551","markdown":"https://insights.sbomify.com/CVE-2021-42551/index.md","name":"CVE-2021-42551","record":{"aliases":["GHSA-hrpc-fm5f-rg4v"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Library catalog software","requires_auth":"none","summary":"An unauthenticated attacker can execute arbitrary scripts in a victim's browser via the search functionality of NetBiblio WebOPAC.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NCSC.ch","cpe":[{"product":"netbiblio","vendor":"alcoda"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","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) vulnerability in the search functionality of AlCoda NetBiblio WebOPAC allows an unauthenticated user to craft a reflected Cross-Site Scripting attack. This issue affects: AlCoda NetBiblio WebOPAC versions prior to 4.0.0.320; versions later than 4.0.0.328. This issue does not affect: AlCoda NetBiblio WebOPAC version 4.0.0.335 and later versions.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":1,"refs":[{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-42551.yaml","stars":null,"title":"NetBiblio WebOPAC - Cross-Site Scripting"}],"tier":"weaponised"},"has_fix":null,"headline":"Reflected XSS in NetBiblio WebOPAC search functionality","id":"CVE-2021-42551","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Reflected XSS in Archivista","id":"CVE-2021-42552"},"packages":[],"prev":{"headline":"RCE from attacker with configuration edit priviledges through JNDI lookup","id":"CVE-2021-42550"},"products":["NetBiblio WebOPAC"],"published":"2022-01-14","related":[],"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)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["AlCoda"]},"summary":"An unauthenticated attacker can execute arbitrary scripts in a victim's browser via the search functionality of NetBiblio WebOPAC.","url":"https://insights.sbomify.com/CVE-2021-42551/"}