Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, a user full name can be evaluated as raw HTML when the following settings are set: `display_name_on_posts` => true; and `prioritize_username_in_ux` => false. Editing a post of a malicious user would trigger an XSS. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
CVE-2026-27154 Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, a user full name can be evaluated as raw HTML when the following… https://www.cve.org/CVERecord?id=CVE-2026-27154
Post summary
The post reports a CVE affecting Discourse where user full names can be rendered as raw HTML and notes that newer versions (2025.12.2, 2026.1.1, 2026.2.0) contain the patch.
CVE-2026-27154 Stored XSS Vulnerability in Discourse Platform via User F... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-27154 Don't wait vulnerability scanning results: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=2
Post summary
The post discloses a stored XSS vulnerability (CVE-2026-27154) affecting the Discourse platform, with no PoC, exploit code, or active exploitation mentioned, and no patch or workaround provided.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | discourse | discourse | - | - | - |
| App | discourse | discourse | 2026.2.0 | - | - |