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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53514.json",
"cwe_ids": [
"CWE-754"
],
"cna_assigner": "Mattermost"
}{
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
],
"cpe": "cpe:2.3:a:mattermost:confluence:*:*:*:*:*:mattermost:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0"
}
]
}