CVE-2026-28803
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| open-formulieren | open-forms | >= 3.4.0-alpha.0, < 3.4.5 | affected |
| open-formulieren | open-forms | < 3.3.13 | affected |
Weaknesses
- CWE-284: CWE-284: Improper Access Control
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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