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vuln-cve/data/2026/28xxx/CVE-2026-28803.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-28803",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-03-03T14:25:19.246Z",
"datePublished": "2026-03-11T15:52:08.464Z",
"dateUpdated": "2026-03-11T17:30:48.578Z"
},
"containers": {
"cna": {
"title": "Open Forms possible to view submission details of other people than intended",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"lang": "en",
"description": "CWE-284: Improper Access Control",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/open-formulieren/open-forms/security/advisories/GHSA-2g49-rfm6-5qj5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/open-formulieren/open-forms/security/advisories/GHSA-2g49-rfm6-5qj5"
}
],
"affected": [
{
"vendor": "open-formulieren",
"product": "open-forms",
"versions": [
{
"version": ">= 3.4.0-alpha.0, < 3.4.5",
"status": "affected"
},
{
"version": "< 3.3.13",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-03-11T15:52:08.464Z"
},
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"source": {
"advisory": "GHSA-2g49-rfm6-5qj5",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-03-11T17:30:34.864496Z",
"id": "CVE-2026-28803",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-03-11T17:30:48.578Z"
}
}
]
}
}