CVE-2021-47843CWE-79

Tagstoo 2.0.1 - Stored XSS to RCE

Medium · published January 15, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
34.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00417 · 34.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-01-15T15:52Z
EPSS history
Timeline
  • 15 JAN 15:52Z
    Tagstoo 2.0.1 - Stored XSS to RCE
    cvelistv5