Parabol before 15.21.2 contains a missing authorization vulnerability in the addReactjiToReactable GraphQL mutation that allows authenticated users to tamper with reactions on other organizations' content. Attackers can pair their own meetingId with a reactableId of another tenant's reflection, comment, or sequential team prompt response to add or remove their reactions.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125748.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "15.21.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "1f063b2f2768ad3a6138156ddce9d938f58e8005"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v15.21.2",
"range": [
{
"fixed": "1ee5d5dfb148a03ec8fbce9231d70fc6342cd22f"
}
],
"source": "REFERENCES_TAG"
}
]
}