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Medium

Stored XSS in Adobe Commerce and Magento Open Source

IdentifiersCVE-2025-54266CWE-79· Improper Neutralization of Input…

CVE-2025-54266 is a stored cross-site scripting vulnerability affecting Adobe Commerce and Magento Open Source. According to the provided content, affected versions include Adobe Commerce 2.4.9-alpha2, 2.4.8-p2, 2.4.7-p7, 2.4.6-p12, 2.4.5-p14, 2.4.4-p15 and earlier. A high-privileged attacker can inject malicious script content into vulnerable form fields, and the payload is then stored by the application. When another user later browses to a page containing the tainted field, the malicious JavaScript executes in that user’s browser. The issue is therefore a stored XSS condition with changed scope because attacker-supplied script executes in the security context of the victim’s browser session.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows execution of attacker-controlled JavaScript in a victim’s browser when the victim views a page containing the stored payload. This can enable session theft, unauthorized actions performed in the victim’s context, content manipulation, credential or token capture, and other browser-side compromise effects available through XSS. Because the issue requires a high-privileged attacker to plant the payload and a separate victim to load the affected page, the practical impact depends on the privileges of both the attacker and the viewing user.

Mitigation

If you can’t patch tonight, do this now.

If patching cannot be performed immediately, restrict administrative and other high-privilege access to trusted users only, reduce unnecessary privileges, monitor for suspicious modifications to form content and administrative activity, and consider disabling unneeded features or modules that expose the vulnerable input paths. Additional compensating controls include tighter review of content entered into administrative form fields and increased monitoring for anomalous JavaScript or unexpected page modifications. These measures reduce exposure but do not eliminate the underlying vulnerability.

Remediation

Patch, then assume compromise.

Apply Adobe’s security updates for Adobe Commerce, Adobe Commerce B2B, and Magento Open Source that address CVE-2025-54266. The provided content indicates that the 2.4.9 alpha line should be upgraded to 2.4.9-alpha3 or later, and that affected supported branches such as 2.4.8-p2, 2.4.7-p7, 2.4.6-p12, 2.4.5-p14, and 2.4.4-p15 should receive the vendor-provided patched release or security update containing the fix. Follow Adobe bulletin APSB25-94 and deploy the latest fixed versions immediately.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AdobeCommerceapplication
AdobeCommerce B2bapplication
AdobeMagentoapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2025-54266
NVD
nvd.nist.gov/vuln/detail/CVE-2025-54266
MITRE CWE · CWE-79
Improper Neutralization of Input During Web…
Vendor Advisory
helpx.adobe.com/security/products/magento/apsb25-94.html