Formie is a Craft CMS plugin for creating forms. Prior to 2.2.21 and 3.1.26, unauthenticated users could modify existing submissions by posting a known or guessed submission ID to formie/submissions/save-submission. This vulnerability is fixed in 2.2.21 and 3.1.26.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47266.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.2.21"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "3.0.0-beta.1"
},
{
"fixed": "3.1.26"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"original_tag": "2.2.21",
"range": [
{
"fixed": "5ad2f21976004d16abd677efddd7d47458fa49e6"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "3.1.26",
"range": [
{
"fixed": "a365a0350feea629152acfb1d1d56beff10076a4"
}
],
"source": "REFERENCES_TAG"
}
]
}