Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-controlled account was not escaped in the delete confirmation dialog, allowing stored cross-site scripting when an administrator impersonated that account. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2026.1.0, < 2026.1.5CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* | ||
>= 2026.4.0, < 2026.4.2CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* | ||
>= 2026.5.0, < 2026.5.1CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* | ||
2026.6.0CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:2026.6.0:*:*:*:latest:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.6 Bluesky, 0.3 Mastodon, and 1.6 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.