{"answers":{"affected":"2 open source packages ship an affected version, including apostrophe.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112958 exists.","fix":"Upgrade apostrophe to 4.34.0 or later.","what":"CVE-2026-112958 is a medium-severity vulnerability in apostrophecms apostrophe, published on 20 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-112958 and fix it if it is affected.\n\nWhat it is: CVE-2026-112958 is a medium-severity vulnerability in apostrophecms apostrophe, published on 20 Oct 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112958 exists.\n\nAffected packages and fixed versions:\n- apostrophe (npm): affected all versions; fixed in 4.34.0\n- apostrophe (npm): affected all versions; fixed in 4.34.0\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-2026-112958/ (Markdown: https://insights.sbomify.com/CVE-2026-112958/index.md)","id":"CVE-2026-112958","markdown":"https://insights.sbomify.com/CVE-2026-112958/index.md","name":"CVE-2026-112958","record":{"aliases":["GHSA-7jg5-frgc-c67w"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, a project-defined free-form widget style field can carry an editor-controlled quote into an inline style attribute because the wrapper serializer does not apply HTML-attribute encoding. The quote can terminate the style attribute and inject executable attributes when published content, or an affected draft viewed by a higher-privileged user, is rendered. This issue is fixed in version 4.34.0.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"ApostropheCMS: Stored XSS via Unescaped Widget Style Attribute Serialization","id":"CVE-2026-112958","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"MISP html_to_markdown Module SSRF via Incomplete IP Range Blocking in is_safe_url()","id":"CVE-2026-112991"},"packages":[{"ecosystem":"npm","fixed":["4.34.0"],"introduced":["0"],"last_affected":[],"package":"apostrophe","purl":null,"source":"GHSA-7jg5-frgc-c67w"},{"ecosystem":"npm","fixed":["4.34.0"],"introduced":["0"],"last_affected":[],"package":"apostrophe","purl":"pkg:npm/apostrophe","source":"GHSA-7jg5-frgc-c67w"}],"prev":{"headline":"ApostropheCMS: GET /api/v1/@apostrophecms/page/:id bypasses viewRole restriction and exposes viewPermission-gated fields to lower-privileged users","id":"CVE-2026-112957"},"products":["apostrophe"],"published":"2026-10-20","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-20","vendors":["apostrophecms"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-112958/"}