CVE-2026-21291 json
Adobe Commerce | Cross-site Scripting (Stored XSS) (CWE-79)
published 2026-03-11 7 mo ago modified 2026-08-28 2 mo ago also EUVD-2026-11047
- cvss
- 4.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
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. Exploitation of this issue requires user interaction in that a victim must browse to the page containing the vulnerable field.
Patch / fix
- Adobe Adobe Commerce 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 Adobe Commerce B2B 1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.5-p14, 1.3.4-p16, 1.3.3-p17
- Adobe Magento Open Source 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Adobe Adobe Commerce
- Adobe Adobe Commerce B2B
- Adobe Magento Open Source
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
helpx.adobe.com
/security/products/magento/apsb26-05.html
vendor-advisory
Sources
- CVE List CVE-2026-21291
- NVD CVE-2026-21291
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.