Vulnerability · Published Jan 15, 2026 · Assigned by VulnCheck
CVE-2021-47843Tagstoo 2.0.1 - Stored XSS to RCE
Medium 5.4
In plain English
A medium-severity cross-site scripting in Tagstoo from Tagstoo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.4%top 63.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Tagstoo 2.0.1 contains a stored cross-site scripting vulnerability that allows attackers to inject malicious payloads through files or custom tags. Attackers can execute arbitrary JavaScript code to spawn system processes, access files, and perform remote code execution on the victim's computer.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
References
- ExploitDB-49828 exploit
- Tagstoo Official Homepage product
- Proof of Concept Video product