CVE-2026-21290
Last modified
CVE-2026-21290 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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 low-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. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
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 low-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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Adobe | Commerce B2b | < 1.3.3 | — |
| Adobe | Commerce B2b | 1.3.3 | — |
| Adobe | Commerce B2b | 1.3.4 | — |
| Adobe | Commerce B2b | 1.3.5 | — |
| Adobe | Commerce B2b | 1.4.2 | — |
| Adobe | Commerce B2b | 1.5.2 | — |
| Adobe | Commerce B2b | 1.5.3 | Alpha1 |
| Adobe | Commerce | < 2.4.4 | — |
| Adobe | Commerce | 2.4.4 | — |
| Adobe | Commerce | 2.4.5 | — |
| Adobe | Commerce | 2.4.6 | — |
| Adobe | Commerce | 2.4.7 | — |
| Adobe | Commerce | 2.4.8 | — |
| Adobe | Commerce | 2.4.9 | Alpha1 |
| Adobe | Magento | < 2.4.5 | — |
| Adobe | Magento | 2.4.5 | — |
| Adobe | Magento | 2.4.6 | — |
| Adobe | Magento | 2.4.7 | — |
| Adobe | Magento | 2.4.8 | — |
| Adobe | Magento | 2.4.9 | Alpha3 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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