CVE-2026-34658: Adobe Commerce | Cross-site Scripting (Stored XSS) (CWE-79)

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-12 · updated 2026-10-26
Weakness: CWE-79

Description

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 high-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.

Affected products

Adobe Commerce: before 2.4.4; 2.4.4, 2.4.4-p1, 2.4.4-p10, 2.4.4-p11, 2.4.4-p12, 2.4.4-p13 (+65) — fixed in 2.4.4
Adobe Commerce: before 1.3.3; 1.3.3, 1.3.3-p1, 1.3.3-p10, 1.3.3-p11, 1.3.3-p12, 1.3.3-p13 (+45) — fixed in 1.3.3
Adobe Magento: before 2.4.6; 2.4.6, 2.4.6-p1, 2.4.6-p10, 2.4.6-p11, 2.4.6-p12, 2.4.6-p13 (+30) — fixed in 2.4.6
Adobe Commerce: through 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17
Adobe Commerce: through 1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.4-p16, 1.3.3-p17
Adobe Magento Open Source: through 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14

How to fix

Upgrade to a fixed version: Adobe Commerce 2.4.4; Adobe Commerce 1.3.3; Adobe Magento 2.4.6. Check the vendor advisory for mitigations.

References

https://helpx.adobe.com/security/products/magento/apsb26-49.html

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