Cross-site scripting in Adobe products - CVE-2026-21311
Published: March 11, 2026
Vulnerability identifier: #VU123795
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-21311
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Adobe Commerce B2B
Magento Open Source
Adobe Commerce (formerly Magento Commerce)
Magento Open Source
Adobe Commerce (formerly Magento Commerce)
How to mitigate CVE-2026-21311
Install updates from vendor's website.
Adobe Commerce B2B - addressed in versions 1.3.3‑p17, 1.3.4-p16, 1.3.5‑p14, 1.4.2‑p9, 1.5.2-p4, 1.5.3 beta1
Magento Open Source - addressed in versions 2.4.5‑p16, 2.4.6-p14, 2.4.7-p9, 2.4.8-p4, 2.4.9‑beta1
Adobe Commerce (formerly Magento Commerce) - addressed in versions 2.4.4‑p17, 2.4.5‑p16, 2.4.6‑p14, 2.4.7‑p9, 2.4.8‑p4, 2.4.9‑beta1
Magento Open Source - addressed in versions 2.4.5‑p16, 2.4.6-p14, 2.4.7-p9, 2.4.8-p4, 2.4.9‑beta1
Adobe Commerce (formerly Magento Commerce) - addressed in versions 2.4.4‑p17, 2.4.5‑p16, 2.4.6‑p14, 2.4.7‑p9, 2.4.8‑p4, 2.4.9‑beta1