TI-2021-16280 Aliases CVE-2021-38710 GHSA-4qj7-wcgp-pm8p

Static (Persistent) XSS Vulnerability exists in version 4.3.0 of Yclas when using the…

LOW 28CWE-79Published 2021-08-18 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Static (Persistent) XSS Vulnerability exists in version 4.3.0 of Yclas when using the install/view/form.php script. An attacker can store XSS in the database through the vulnerable SITE_NAME parameter.

Why it matters now

EPSS 0.00636 50th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:yclas:yclas:4.3.0:::::::*	4.3.0	Vulnerable	Yclas

cpe:2.3:a:yclas:yclas:4.3.0:*:*:*:*:*:*:* Versions 4.3.0 Vulnerable ·Yclas

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-38710
2026-10-03 Alias added: GHSA-4qj7-wcgp-pm8p
2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 1

https://github.com/security-n/CVE-2021-38710

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences