{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-20239 exists.","fix":"No fix has been published for CVE-2017-20239 yet. Limit exposure of the affected software until one is available.","what":"CVE-2017-20239 is a medium-severity cross-site scripting vulnerability in Dynalon MDwiki, published on 12 Apr 2026. 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-2017-20239 and fix it if it is affected.\n\nWhat it is: CVE-2017-20239 is a medium-severity cross-site scripting vulnerability in Dynalon MDwiki, published on 12 Apr 2026. 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-2017-20239 exists.\n\nAffected product: Dynalon MDwiki. 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-2017-20239/ (Markdown: https://insights.sbomify.com/CVE-2017-20239/index.md)","id":"CVE-2017-20239","markdown":"https://insights.sbomify.com/CVE-2017-20239/index.md","name":"CVE-2017-20239","record":{"aliases":["GHSA-gp82-mmj7-m5w2"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MDwiki","requires_auth":"none","summary":"Remote attackers can execute arbitrary JavaScript in victims' browsers by injecting malicious code into the location hash parameter of MDwiki.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"mdwiki","vendor":"dynalon"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"MDwiki contains a cross-site scripting vulnerability that allows remote attackers to execute arbitrary JavaScript by injecting malicious code through the location hash parameter. Attackers can craft URLs with JavaScript payloads in the hash fragment that are parsed and rendered without sanitization, causing the injected scripts to execute in the victim's browser context.","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":"MDwiki Cross-Site Scripting via Location Hash Parameter","id":"CVE-2017-20239","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2017"},"n_packages":0,"n_references":2,"next":{"headline":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks","id":"CVE-2017-20240"},"packages":[],"prev":{"headline":"Hirschmann Industrial HiVision Improper Authorization Privilege Escalation","id":"CVE-2017-20238"},"products":["MDwiki"],"published":"2026-04-12","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)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["Dynalon"]},"summary":"Remote attackers can execute arbitrary JavaScript in victims' browsers by injecting malicious code into the location hash parameter of MDwiki.","url":"https://insights.sbomify.com/CVE-2017-20239/"}