{"answers":{"affected":"2 open source packages ship an affected version, including silverstripe/framework.","exploited":"There is no known exploitation of CVE-2026-54720 in the wild and no public exploit code.","fix":"Upgrade silverstripe/framework to 6.2.2 or later.","what":"CVE-2026-54720 is a medium-severity cross-site scripting vulnerability in silverstripe-framework, published on 1 Jul 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-2026-54720 and fix it if it is affected.\n\nWhat it is: CVE-2026-54720 is a medium-severity cross-site scripting vulnerability in silverstripe-framework, published on 1 Jul 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-2026-54720 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- silverstripe/framework (Packagist): affected all versions; fixed in 6.2.2\n- silverstripe/framework (Packagist): affected all versions; fixed in 6.2.2\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-2026-54720/ (Markdown: https://insights.sbomify.com/CVE-2026-54720/index.md)","id":"CVE-2026-54720","markdown":"https://insights.sbomify.com/CVE-2026-54720/index.md","name":"CVE-2026-54720","record":{"aliases":["GHSA-gvrw-qqp5-jgc5"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Silverstripe CMS","requires_auth":"none","summary":"Attackers can execute arbitrary scripts via crafted media embeds in Silverstripe CMS, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Silverstripe Framework is a PHP framework which powers the Silverstripe CMS. In versions prior to 6.2.2, the \"Insert media from web\" functionality in the CMS is vulnerable to XSS from a specially crafted embed. This issue was fixed in version 6.2.2/","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Silverstripe Framework: Possible XSS attack through media embed","id":"CVE-2026-54720","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"Silverstripe UserForms: Remote code execution via userforms email subject","id":"CVE-2026-54721"},"packages":[{"ecosystem":"Packagist","fixed":["6.2.2"],"introduced":["0"],"last_affected":[],"package":"silverstripe/framework","purl":null,"source":"GHSA-gvrw-qqp5-jgc5"},{"ecosystem":"Packagist","fixed":["6.2.2"],"introduced":["0"],"last_affected":[],"package":"silverstripe/framework","purl":"pkg:composer/silverstripe/framework","source":"GHSA-gvrw-qqp5-jgc5"}],"prev":{"headline":"goshs: File-based .goshs ACL authorization bypass via the ?bulk zip-download route (unauthenticated read; residual of GHSA-wvhv-qcqf-f3cx)","id":"CVE-2026-54719"},"products":["silverstripe-framework"],"published":"2026-07-01","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2026-07-02","vendors":["silverstripe"]},"summary":"Attackers can execute arbitrary scripts via crafted media embeds in Silverstripe CMS, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2026-54720/"}