Vulnerability details
CVE-2026-21311
Adobe CommerceAdobe Commerce B2BAdobe Magento Open Source
Adobe Commerce | Cross-site Scripting (Stored XSS) (CWE-79)
CVSS 3.1
8.0High
Official description
Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 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. A successful attacker can abuse this to achieve session takeover, increasing the confidentiality, and integrity impact to high. Exploitation of this issue requires user interaction in that a victim must browse to the page containing the vulnerable field.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.0High | 3.1 | CVEProject cvelistV5 (CNA) (adobe) | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Adobe | Adobe Commerce | v ≤ 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 | CVEProject cvelistV5 (CNA) |
| Adobe | Adobe Commerce B2B | v ≤ 1.5.3-alpha3, 1.5.2-p3, 1.4.2-p8, 1.3.5-p13, 1.3.4-p15, 1.3.3-p16 | CVEProject cvelistV5 (CNA) |
| Adobe | Magento Open Source | v ≤ 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://helpx.adobe.com/security/products/magento/apsb26-05.html vendor-advisory
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Details
- Published
- 2026-03-11
- Last updated
- 2026-08-28
- State
- Published
- Assigner (CNA)
- adobe
Exploit prediction (EPSS)
0.35%
Probability of exploitation in 30 days
29.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-79Cross-site Scripting (Stored XSS) (CWE-79)