Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck

CVE-2026-104479Shopclass before 6.2.0 Stored XSS via Listing Description Field

Medium 5.4

In plain English

A medium-severity cross-site scripting in shopclass from mindstellar. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 93.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
mindstellar	shopclass	0 – before 6.2.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Patch Commit patch
https://github.com/mindstellar/shopclass product
VulnCheck Advisory: Shopclass before 6.2.0 Stored XSS via Listing Description Field third-party-advisory