{"answers":{"affected":"2 open source packages ship an affected version, including silverstripe/cms.","exploited":"There is no known exploitation of CVE-2026-54717 in the wild and no public exploit code.","fix":"Upgrade silverstripe/cms to 6.2.1 or later.","what":"CVE-2026-54717 is a medium-severity cross-site scripting vulnerability in silverstripe-cms, published on 6 Aug 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-2026-54717 and fix it if it is affected.\n\nWhat it is: CVE-2026-54717 is a medium-severity cross-site scripting vulnerability in silverstripe-cms, published on 6 Aug 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-2026-54717 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- silverstripe/cms (Packagist): affected all versions; fixed in 6.2.1\n- silverstripe/cms (Packagist): affected all versions; fixed in 6.2.1\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-2026-54717/ (Markdown: https://insights.sbomify.com/CVE-2026-54717/index.md)","id":"CVE-2026-54717","markdown":"https://insights.sbomify.com/CVE-2026-54717/index.md","name":"CVE-2026-54717","record":{"aliases":["GHSA-w3cp-g2pf-65wh"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Silverstripe CMS","requires_auth":"none","summary":"Attackers can execute arbitrary scripts in the Silverstripe CMS page list view via unescaped page titles in breadcrumbs, 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 CMS is an open source content management system. Prior to 6.2.1, page breadcrumbs in the CMS are vulnerable to cross-site scripting when viewed using the page list view, because page titles are rendered into the breadcrumb trail without being escaped. This issue is fixed in 6.2.1.","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: XSS in breadcrumbs in page list view","id":"CVE-2026-54717","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"Silverstripe Advanced Workflow: Remote code execution via advanced workflow email template","id":"CVE-2026-54718"},"packages":[{"ecosystem":"Packagist","fixed":["6.2.1"],"introduced":["0"],"last_affected":[],"package":"silverstripe/cms","purl":null,"source":"GHSA-w3cp-g2pf-65wh"},{"ecosystem":"Packagist","fixed":["6.2.1"],"introduced":["0"],"last_affected":[],"package":"silverstripe/cms","purl":"pkg:composer/silverstripe/cms","source":"GHSA-w3cp-g2pf-65wh"}],"prev":{"headline":"Valhalla: Degenerate exclude_polygons (collinear points, zero area) causes OOM in /sources_to_targets","id":"CVE-2026-54716"},"products":["silverstripe-cms"],"published":"2026-08-06","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":"2026-08-07","vendors":["silverstripe"]},"summary":"Attackers can execute arbitrary scripts in the Silverstripe CMS page list view via unescaped page titles in breadcrumbs, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2026-54717/"}