TI-2026-67390 Aliases CVE-2026-104479 GHSA-3gwr-hcgg-p3rv

Shopclass before 6.2.0 Stored XSS via Listing Description Field

LOW 22CWE-79Published 2026-10-02 · Updated 2026-10-05

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Shopclass before 6.2.0 contains a stored cross-site scripting vulnerability that allows self-registered non-admin users to inject scripts into item listing descriptions when frontend TinyMCE is enabled. Attackers can submit malicious JavaScript, which ItemActions.php saves without tag stripping, causing it to execute in the site origin for any visitor viewing the listing.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00169 6th percentileScored 2026-11-07

Fix Fixed shopclass (mindstellar): 6.2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
mindstellar	shopclass	before 6.2.0	6.2.0	Patch available	CNA

shopclass Vendormindstellar Affected before 6.2.0 Fixed in 6.2.0 Patch available CNA

Remediation

Fix · CNA shopclass (mindstellar) Fixed in 6.2.0

Timeline

2026-10-03 Threatist record created from CVE-2026-104479
2026-10-03 Alias added: GHSA-3gwr-hcgg-p3rv
2026-10-05 CISA SSVC decision points changed

References

Patch 1

Patch Commit

Other 1

https://github.com/mindstellar/shopclass

TI-2024-18289 Osclass 5.1.2 is vulnerable to SQL Injection. CVSS 3.1HIGH 7.2

Sources

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