CVE-2026-104479

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.

CVSS 4.0

5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-10-03

Modified

2026-10-06

Record from

the NVD, synced 2026-10-19

References

• https://github.com/mindstellar/shopclass
• https://github.com/mindstellar/shopclass/commit/c196f70906522c9b9172c24f1b42cd0a02357422
• https://www.vulncheck.com/advisories/shopclass-before-6.2.0-stored-xss-via-listing-description-field

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