{"answers":{"affected":"4 open source packages ship an affected version, including craftcms/cms. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-33158 in the wild and no public exploit code.","fix":"Upgrade craftcms/cms to a fixed version for your release line: 4.17.8 or 5.9.14.","what":"CVE-2026-33158 is a medium-severity missing authorization vulnerability in Craftcms Craft Cms, published on 24 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-33158 and fix it if it is affected.\n\nWhat it is: CVE-2026-33158 is a medium-severity missing authorization vulnerability in Craftcms Craft Cms, published on 24 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-33158 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- craftcms/cms (Packagist): affected from 4.0.0-RC1; fixed in 4.17.8\n- craftcms/cms (Packagist): affected from 4.0.0-RC1; fixed in 4.17.8\n- craftcms/cms (Packagist): affected from 5.0.0-RC1; fixed in 5.9.14\n- craftcms/cms (Packagist): affected from 5.0.0-RC1; fixed in 5.9.14\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-2026-33158/ (Markdown: https://insights.sbomify.com/CVE-2026-33158/index.md)","id":"CVE-2026-33158","markdown":"https://insights.sbomify.com/CVE-2026-33158/index.md","name":"CVE-2026-33158","record":{"aliases":["GHSA-3pvf-vxrv-hh9c"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Craft CMS","requires_auth":"low_privilege","summary":"Low-privileged users can read private asset contents by manipulating asset IDs, exposing sensitive files to unauthorized users.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"craft_cms","vendor":"craftcms"}],"cvss":{"score":4.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, a low-privileged authenticated user can read private asset content by calling assets/edit-image with an arbitrary assetId that they are not authorized to view. The endpoint returns image bytes (or a preview redirect) without enforcing a per-asset view authorization check, leading to potential unauthorized disclosure of private files. This issue has been patched in versions 4.17.8 and 5.9.14.","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":"Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)","id":"CVE-2026-33158","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"craftcms:craft_cms","products":["craftcms:craft_cms"],"type":"missing_authorization","year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"Craft CMS: Unauthenticated Users Can Perform Restricted Project Config Sync Operations","id":"CVE-2026-33159"},"packages":[{"ecosystem":"Packagist","fixed":["4.17.8"],"introduced":["4.0.0-RC1"],"last_affected":[],"package":"craftcms/cms","purl":null,"source":"GHSA-3pvf-vxrv-hh9c"},{"ecosystem":"Packagist","fixed":["4.17.8"],"introduced":["4.0.0-RC1"],"last_affected":[],"package":"craftcms/cms","purl":"pkg:composer/craftcms/cms","source":"GHSA-3pvf-vxrv-hh9c"},{"ecosystem":"Packagist","fixed":["5.9.14"],"introduced":["5.0.0-RC1"],"last_affected":[],"package":"craftcms/cms","purl":null,"source":"GHSA-3pvf-vxrv-hh9c"},{"ecosystem":"Packagist","fixed":["5.9.14"],"introduced":["5.0.0-RC1"],"last_affected":[],"package":"craftcms/cms","purl":"pkg:composer/craftcms/cms","source":"GHSA-3pvf-vxrv-hh9c"}],"prev":{"headline":"Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior","id":"CVE-2026-33157"},"products":["cms"],"published":"2026-03-24","related":[{"cvss_score":10,"headline":"Craft CMS Code Injection","id":"CVE-2025-32432","kev_date_added":"2026-03-20","published":"2025-04-25"},{"cvss_score":9.3,"headline":"Craft CMS Code Injection","id":"CVE-2024-56145","kev_date_added":"2025-06-02","published":"2024-12-18"},{"cvss_score":8.1,"headline":"Craft CMS Code Injection","id":"CVE-2025-23209","kev_date_added":"2025-02-20","published":"2025-01-18"},{"cvss_score":6.9,"headline":"Craft CMS External Control of Assumed-Immutable Web Parameter","id":"CVE-2025-35939","kev_date_added":"2025-06-02","published":"2025-05-07"},{"cvss_score":10,"headline":"Craft CMS Remote Code Execution vulnerability","id":"CVE-2023-41892","kev_date_added":null,"published":"2023-09-13"},{"cvss_score":9.8,"headline":"Craft CMS Remote Code Injection","id":"CVE-2021-27903","kev_date_added":null,"published":"2021-06-30"},{"cvss_score":9.8,"headline":"SEOmatic for CraftCMS allows Server-Side Template Injection","id":"CVE-2020-9757","kev_date_added":null,"published":"2020-03-04"}],"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":"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":"partial"},"state":"PUBLISHED","updated":"2026-03-24","vendors":["craftcms"]},"summary":"Low-privileged users can read private asset contents by manipulating asset IDs, exposing sensitive files to unauthorized users.","url":"https://insights.sbomify.com/CVE-2026-33158/"}