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CVE-2021-47746

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Date: January 21, 2026

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.

Severity Score

Related Resources (6)

https://www.exploit-db.com/exploits/49813
https://www.vulncheck.com/advisories/nodebb-plugin-emoji-arbitrary-file-write
https://nodebb.org/
https://nvd.nist.gov/vuln/detail/CVE-2021-47746
https://github.com/NodeBB/nodebb-plugin-emoji
https://www.mend.io/vulnerability-database/CVE-2021-47746

Severity Score

Weakness Type (CWE)

External Control of File Name or Path

CWE-73

Top Fix

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Upgrade Version

Upgrade to version nodebb-plugin-emoji - 3.5.1;https://github.com/NodeBB/nodebb-plugin-emoji.git - v3.5.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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