{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-28803 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-28803 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-28803 is a medium-severity missing authorization vulnerability in open-formulieren open-forms, published on 11 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-2026-28803 and fix it if it is affected.\n\nWhat it is: CVE-2026-28803 is a medium-severity missing authorization vulnerability in open-formulieren open-forms, published on 11 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-2026-28803 in the wild and no public exploit code.\n\nAffected product: open-formulieren open-forms. 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-2026-28803/ (Markdown: https://insights.sbomify.com/CVE-2026-28803/index.md)","id":"CVE-2026-28803","markdown":"https://insights.sbomify.com/CVE-2026-28803/index.md","name":"CVE-2026-28803","record":{"aliases":["GHSA-2g49-rfm6-5qj5"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Open Forms","requires_auth":"low_privilege","summary":"Authenticated attackers can view other users' form submissions by guessing or modifying submission reference codes.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"open_forms","vendor":"maykinmedia"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Open Forms allows users create and publish smart forms. Prior to 3.3.13 and 3.4.5, to be able to cosign, the cosigner receives an e-mail with instructions or a deep-link to start the cosign flow. The submission reference is communicated so that the user can retrieve the submission to be cosigned. Attackers can guess a code or modify the received code to look up arbitrary submissions, after logging in (with DigiD/eHerkenning/... depending on form configuration). This vulnerability is fixed in 3.3.13 and 3.4.5.","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":"Open Forms possible to view submission details of other people than intended","id":"CVE-2026-28803","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"pypdf: Inefficient decoding of ASCIIHexDecode streams","id":"CVE-2026-28804"},"packages":[],"prev":{"headline":"Authlib: Setting `alg: none` and a blank signature appears to bypass signature verification","id":"CVE-2026-28802"},"products":["open-forms"],"published":"2026-03-11","related":[{"cvss_score":7.7,"headline":"Open Forms potential multi-factor authentication bypass","id":"CVE-2024-24771","kev_date_added":null,"published":"2024-02-07"},{"cvss_score":7.6,"headline":"Insufficient content-type validation for uploaded files in open-forms","id":"CVE-2022-31041","kev_date_added":null,"published":"2022-06-13"},{"cvss_score":7.1,"headline":"Open Redirect in open-forms","id":"CVE-2022-31040","kev_date_added":null,"published":"2022-06-13"},{"cvss_score":4.3,"headline":"Open Forms prefill data in read-only components can be tampered","id":"CVE-2025-64515","kev_date_added":null,"published":"2025-11-18"}],"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":"2026-03-11","vendors":["open-formulieren"]},"summary":"Authenticated attackers can view other users' form submissions by guessing or modifying submission reference codes.","url":"https://insights.sbomify.com/CVE-2026-28803/"}