Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled.
{
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48954.json",
"cna_assigner": "GitHub_M"
}{
"cpe": [
"cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*",
"cpe:2.3:a:discourse:discourse:3.5.0:beta1:*:*:beta:*:*:*",
"cpe:2.3:a:discourse:discourse:3.5.0:beta2:*:*:beta:*:*:*",
"cpe:2.3:a:discourse:discourse:3.5.0:beta3:*:*:beta:*:*:*",
"cpe:2.3:a:discourse:discourse:3.5.0:beta4:*:*:beta:*:*:*",
"cpe:2.3:a:discourse:discourse:3.5.0:beta5:*:*:beta:*:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "3.5.0"
},
{
"introduced": "3.5.0-beta1"
},
{
"last_affected": "3.5.0-beta1"
},
{
"introduced": "3.5.0-beta2"
},
{
"last_affected": "3.5.0-beta2"
},
{
"introduced": "3.5.0-beta3"
},
{
"last_affected": "3.5.0-beta3"
},
{
"introduced": "3.5.0-beta4"
},
{
"last_affected": "3.5.0-beta4"
},
{
"introduced": "3.5.0-beta5"
},
{
"last_affected": "3.5.0-beta5"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}