{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18478 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18478 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18478 is a medium-severity cross-site scripting vulnerability in Magnolia CMS, published on 10 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-18478 and fix it if it is affected.\n\nWhat it is: CVE-2026-18478 is a medium-severity cross-site scripting vulnerability in Magnolia CMS, published on 10 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-18478 in the wild and no public exploit code.\n\nAffected product: Magnolia CMS. 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-2026-18478/ (Markdown: https://insights.sbomify.com/CVE-2026-18478/index.md)","id":"CVE-2026-18478","markdown":"https://insights.sbomify.com/CVE-2026-18478/index.md","name":"CVE-2026-18478","record":{"aliases":["GHSA-jp3f-93v6-xm3f"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Magnolia CMS","requires_auth":"low_privilege","summary":"An attacker with editor privileges can inject arbitrary HTML and JavaScript into image names, leading to stored XSS execution when images are viewed.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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":"Magnolia CMS is vulnerable to Stored XSS in import functionality. An attacker with editor privileges can inject arbitrary HTML and JS into the name of uploaded image, which will be rendered/executed when opening uploaded image.\n\nThe issue was fixed in version 6.3.10","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 XSS in Magnolia CMS","id":"CVE-2026-18478","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"SureCart \u003c 4.6.3 - Subscriber+ Administrator Account Takeover","id":"CVE-2026-18480"},"packages":[],"prev":{"headline":"Tar: tar: toctou in incremental dumpdir 'x' rename handling allows restore path escape","id":"CVE-2026-18477"},"products":["Magnolia CMS"],"published":"2026-08-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-08-10","vendors":["Magnolia DXP"]},"summary":"An attacker with editor privileges can inject arbitrary HTML and JavaScript into image names, leading to stored XSS execution when images are viewed.","url":"https://insights.sbomify.com/CVE-2026-18478/"}