---
cve: "CVE-2026-21311"
severity: "HIGH"
cvss: 8.0
epss: "30%"
vendor: "Adobe"
kev: false
exploited: false
published: "2026-03-11 03:15:55"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T22:12:20+02:00"
---

# CVE-2026-21311

> 8.0 HIGH

## Beschreibung

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-Vektor

```
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 0f9a056c8d83c4f319626b3e56ec52a533999f25 (Commit)
- 1df4565907d40f14ee1c753cc2de2ce567bfa8d7 (Commit)

## Referenzen

- <https://helpx.adobe.com/security/products/magento/apsb26-05.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-21311) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_