CVE-2025-48954

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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.1 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
GitHub_MCNA
8.1 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 93%
VendorProductVersion
discoursediscourse
𝑥
< 3.5.0
discoursediscourse
3.5.0
discoursediscourse
3.5.0:beta1
discoursediscourse
3.5.0:beta2
discoursediscourse
3.5.0:beta3
discoursediscourse
3.5.0:beta4
discoursediscourse
3.5.0:beta5
𝑥
= Vulnerable software versions