What is CVE-2021-47843?

CVE-2021-47843 is a medium-severity vulnerability in Pabloandumundu Tagstoo, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-01-15.

How severe is CVE-2021-47843?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Pabloandumundu Tagstoo

CVE-2021-47843

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, an…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (28.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Pabloandumundu Tagstoo — versions 2.0.1
Tagstoo — versions 2.0.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (Exploit, Third Party Advisory, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Exploit, product)

Frequently asked questions

What is CVE-2021-47843?: CVE-2021-47843 is a medium-severity vulnerability in Pabloandumundu Tagstoo, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-01-15.
How severe is CVE-2021-47843?: Medium severity. CVSS v3 base score is 5.4 out of 10.