The POST SMTP WordPress plugin before 2.8.7 does not sanitise and escape the msg parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
{
"cna_assigner": "WPScan",
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"fixed": "2.8.7"
}
]
},
{
"source": "DESCRIPTION",
"extracted_events": [
{
"fixed": "2.8.7"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6621.json"
}{
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.8.7"
}
],
"cpe": "cpe:2.3:a:wpexperts:post_smtp:*:*:*:*:*:wordpress:*:*"
}