{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-28281 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-28281 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-28281 is a high-severity vulnerability in instantsoft icms2, published on 9 Mar 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-2026-28281 and fix it if it is affected.\n\nWhat it is: CVE-2026-28281 is a high-severity vulnerability in instantsoft icms2, published on 9 Mar 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-2026-28281 in the wild and no public exploit code.\n\nAffected product: instantsoft icms2. 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-2026-28281/ (Markdown: https://insights.sbomify.com/CVE-2026-28281/index.md)","id":"CVE-2026-28281","markdown":"https://insights.sbomify.com/CVE-2026-28281/index.md","name":"CVE-2026-28281","record":{"aliases":["GHSA-pp43-262q-h73m"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"InstantCMS","requires_auth":"none","summary":"Attackers can perform unauthorized actions like granting moderator privileges or modifying posts due to missing CSRF token validation in InstantCMS.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"instantcms","vendor":"instantcms"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"InstantCMS is a free and open source content management system. Prior to 2.18.1, InstantCMS does not validate CSRF tokens, which allows attackers grant moderator privileges to users, execute scheduled tasks, move posts to trash, and accept friend requests on behalf of the user. This vulnerability is fixed in 2.18.1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"InstantCMS has Multiple CSRF Vulnerabilities","id":"CVE-2026-28281","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"csrf","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Discourse vulnerable to group membership addition permission bypass via discourse-policy plugin","id":"CVE-2026-28282"},"packages":[],"prev":{"headline":"`osctrl-admin` has Stored Cross-Site Scripting (XSS) in On-Demand Query List","id":"CVE-2026-28280"},"products":["icms2"],"published":"2026-03-09","related":[{"cvss_score":9.8,"headline":"SQL Injection in instantsoft/icms2","id":"CVE-2023-4188","kev_date_added":null,"published":"2023-08-05"},{"cvss_score":9.3,"headline":"InstantCMS \u003c= 1.6 Remote PHP Code Execution","id":"CVE-2013-10051","kev_date_added":null,"published":"2025-08-01"},{"cvss_score":8.8,"headline":"External Control of System or Configuration Setting in instantsoft/icms2","id":"CVE-2023-4704","kev_date_added":null,"published":"2023-09-01"},{"cvss_score":6.8,"headline":"Cross-site Scripting (XSS) - Stored in instantsoft/icms2","id":"CVE-2023-4652","kev_date_added":null,"published":"2023-08-31"},{"cvss_score":6.7,"headline":"SQL injection in index_chart_data action","id":"CVE-2024-31212","kev_date_added":null,"published":"2024-04-04"},{"cvss_score":6.4,"headline":"Server-Side Request Forgery (SSRF) in instantsoft/icms2","id":"CVE-2023-4651","kev_date_added":null,"published":"2023-08-31"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-03-10","vendors":["instantsoft"]},"summary":"Attackers can perform unauthorized actions like granting moderator privileges or modifying posts due to missing CSRF token validation in InstantCMS.","url":"https://insights.sbomify.com/CVE-2026-28281/"}