What is CVE-2026-34686?

CVE-2026-34686 is a high-severity vulnerability in Adobe Commerce, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-12.

How severe is CVE-2026-34686?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Adobe Commerce

CVE-2026-34686

Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious sc…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (2.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Adobe Commerce — versions 0
Adobe Commerce — versions 2.4.4, 2.4.5, 2.4.6
Adobe Commerce_b2b — versions 1.3.3, 1.3.4, 1.4.2
Adobe Magento — versions 2.4.6, 2.4.7, 2.4.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@adobe.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34686?: CVE-2026-34686 is a high-severity vulnerability in Adobe Commerce, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-12.
How severe is CVE-2026-34686?: High severity. CVSS v3 base score is 8.7 out of 10.