{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-5591 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-5591 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-5591 is a high-severity cross-site scripting vulnerability in Kentico Xperience, published on 5 Jan 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-2025-5591 and fix it if it is affected.\n\nWhat it is: CVE-2025-5591 is a high-severity cross-site scripting vulnerability in Kentico Xperience, published on 5 Jan 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: There is no known exploitation of CVE-2025-5591 in the wild and no public exploit code.\n\nAffected product: Kentico Xperience. 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-2025-5591/ (Markdown: https://insights.sbomify.com/CVE-2025-5591/index.md)","id":"CVE-2025-5591","markdown":"https://insights.sbomify.com/CVE-2025-5591/index.md","name":"CVE-2025-5591","record":{"aliases":["GHSA-8f4c-27f5-j68q"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Kentico Xperience CMS","requires_auth":"none","summary":"Attackers can inject malicious scripts into form components to hijack user sessions and perform actions in their security context.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TML","cpe":[{"product":"xperience","vendor":"kentico"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-1188","name":"Initialization of a Resource with an Insecure Default"}],"description":"Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker to hijack a victim user’s session and perform actions in their security context.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Stored Cross-site Scripting (XSS) in Kentico Xperience 13","id":"CVE-2025-5591","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"kentico:xperience","products":["kentico:xperience"],"type":"xss","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"FreeFloat FTP Server PASSIVE Command buffer overflow","id":"CVE-2025-5592"},"packages":[],"prev":{"headline":"Owl carousel responsive \u003c= 1.9 - Authenticated (Contributor+) SQL Injection via id Parameter","id":"CVE-2025-5590"},"products":["Kentico Xperience"],"published":"2026-01-05","related":[{"cvss_score":9.8,"headline":"Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2025-2746","kev_date_added":"2025-10-20","published":"2025-03-24"},{"cvss_score":9.8,"headline":"Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2025-2747","kev_date_added":"2025-10-20","published":"2025-03-24"},{"cvss_score":9.8,"headline":"Kentico Xperience Deserialization of Untrusted Data","id":"CVE-2019-10068","kev_date_added":"2022-03-25","published":"2019-03-26"},{"cvss_score":7.2,"headline":"Kentico Xperience Path Traversal","id":"CVE-2025-2749","kev_date_added":"2026-04-20","published":"2025-03-24"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2017-17736","kev_date_added":null,"published":"2018-03-23"},{"cvss_score":9.1,"headline":"Missing authorization in n/a","id":"CVE-2019-12102","kev_date_added":null,"published":"2019-05-22"},{"cvss_score":8.8,"headline":"File upload in n/a","id":"CVE-2018-19453","kev_date_added":null,"published":"2019-04-10"}],"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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-01-05","vendors":["Kentico"]},"summary":"Attackers can inject malicious scripts into form components to hijack user sessions and perform actions in their security context.","url":"https://insights.sbomify.com/CVE-2025-5591/"}