Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body.
{
"cna_assigner": "Mattermost",
"cwe_ids": [
"CWE-754"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53514.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.5.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"cpe": "cpe:2.3:a:mattermost:confluence:*:*:*:*:*:mattermost:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.5.0"
}
],
"source": "CPE_RANGE"
}
]
}