{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-4052 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-4052 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-4052 is a medium-severity cross-site scripting vulnerability in Requarks.io Wiki.js, published on 16 Jun 2020. 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-2020-4052 and fix it if it is affected.\n\nWhat it is: CVE-2020-4052 is a medium-severity cross-site scripting vulnerability in Requarks.io Wiki.js, published on 16 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-4052 in the wild and no public exploit code.\n\nAffected product: Requarks.io Wiki.js. 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-2020-4052/ (Markdown: https://insights.sbomify.com/CVE-2020-4052/index.md)","id":"CVE-2020-4052","markdown":"https://insights.sbomify.com/CVE-2020-4052/index.md","name":"CVE-2020-4052","record":{"aliases":["GHSA-9jgg-4xj2-vjjj"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Wiki.js","requires_auth":"none","summary":"A malicious user can inject JavaScript via crafted wiki pages, leading to stored XSS attacks against other users viewing the page.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"wiki.js","vendor":"requarks"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"In Wiki.js before 2.4.107, there is a stored cross-site scripting through template injection. This vulnerability exists due to an insecure validation mechanism intended to insert v-pre tags into rendered HTML elements which contain curly-braces. By creating a crafted wiki page, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the page is viewed by other users. This has been patched in 2.4.107.","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":"Stored XSS through template injection in Wiki.js","id":"CVE-2020-4052","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Path Traversal in Helm Plugin Archive","id":"CVE-2020-4053"},"packages":[],"prev":{"headline":"XSS in Dijit Editor's LinkDialog plugin","id":"CVE-2020-4051"},"products":["Wiki.js"],"published":"2020-06-16","related":[{"cvss_score":9.1,"headline":"Security feature bypass in n/a","id":"CVE-2025-56643","kev_date_added":null,"published":"2025-11-18"},{"cvss_score":8.6,"headline":"Wiki.js: Privilege Escalation via Missing Group Validation in users.update","id":"CVE-2026-44224","kev_date_added":null,"published":"2026-05-12"},{"cvss_score":8.6,"headline":"Directory Traversal in Wiki.js","id":"CVE-2020-15236","kev_date_added":null,"published":"2020-10-05"},{"cvss_score":8.2,"headline":"Stored XSS via SVG in Requarks/wiki","id":"CVE-2021-43855","kev_date_added":null,"published":"2021-12-27"},{"cvss_score":8.2,"headline":"Stored XSS in non-image uploads in Requarks/wiki","id":"CVE-2021-43856","kev_date_added":null,"published":"2021-12-27"},{"cvss_score":8.1,"headline":"Improper write access check in Requarks/wiki","id":"CVE-2022-23654","kev_date_added":null,"published":"2022-02-22"},{"cvss_score":7.6,"headline":"XSS in Wiki.js","id":"CVE-2021-21383","kev_date_added":null,"published":"2021-03-18"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Requarks.io"]},"summary":"A malicious user can inject JavaScript via crafted wiki pages, leading to stored XSS attacks against other users viewing the page.","url":"https://insights.sbomify.com/CVE-2020-4052/"}