What is CVE-2026-29177?

CVE-2026-29177 is a medium-severity vulnerability in Craftcms Commerce, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-10.

How severe is CVE-2026-29177?

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

XSS in Craftcms Commerce

CVE-2026-29177

Craft Commerce is an ecommerce platform for Craft CMS. Prior to 4.10.2 and 5.5.3, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Craft Commerce Order details. Malicious JavaScript can be injected via the Shipping Method Name, Order Reference, or Site Name. When a user opens the order details slideout via a double-click on the order index page, the injected payload executes. This vulnerability is fixed in 4.10.2 and 5.5.3.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-03-10 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.002 (14.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Craftcms Commerce — versions >= 4.0.0 < 4.10.2, >= 5.0.0 < 5.5.3
Craftcms Craft Commerce

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/craftcms/commerce/security/advisories/GHSA-mj32-r678-7mvp (Exploit, Vendor Advisory)
github.com/craftcms/commerce/commit/b0683e04773f16bba6af9df18aab495fc5dde68a (Patch)

Frequently asked questions

What is CVE-2026-29177?: CVE-2026-29177 is a medium-severity vulnerability in Craftcms Commerce, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-10.
How severe is CVE-2026-29177?: Medium severity. CVSS v3 base score is 5.4 out of 10.