Vulnerabilities CVE-2026-73038

CVE-2026-73038

Medium

Open

TLP:CLEAR

NodeBB < 4.15.0 Stored XSS via ActivityPub emoji tag.icon.url and tag.name

NVD CVE.org

AI Analysis

No AI analysis yet.

Description

NodeBB before 4.15.0 contains a stored cross-site scripting vulnerability in the renderEmoji function that fails to escape tag.icon.url and tag.name attributes. Attackers can deliver malicious ActivityPub Create/Note objects with crafted emoji tags to inject arbitrary HTML and JavaScript into stored post content, executing code in all viewers' browsers.

Details

CVSS Score: 5.3
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Confidence: 90%
Published: Aug 13, 2026
Last Modified: Aug 13, 2026

Notes

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

No opinions yet. Be the first to assess this intelligence.