Vulnerability · Published Jan 21, 2026 · Assigned by VulnCheck
CVE-2021-47746NodeBB Plugin Emoji 3.2.1 - Arbitrary File Write
High 7.5
In plain English
A high-severity security flaw in NodeBB Plugin Emoji from NodeBB. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.7%top 45.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
NodeBB Plugin Emoji 3.2.1 contains an arbitrary file write vulnerability that allows administrative users to write files to arbitrary system locations through the emoji upload API. Attackers with admin access can craft file upload requests with directory traversal to overwrite system files by manipulating the file path parameter.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NodeBB | NodeBB Plugin Emoji | 3.2.1 |
Weakness: CWE-73 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- ExploitDB-49813 exploit
- Official NodeBB Homepage product
- NodeBB Emoji Plugin GitHub Repository product
- VulnCheck Advisory: NodeBB Plugin Emoji 3.2.1 - Arbitrary File Write third-party-advisory