CVE-2020-9581

Sensitive data disclosure via unescaped stored messages

Published Jun 26, 2020 · Updated Aug 4, 2024

Stored cross-site scripting in Adobe Magento Open Source 2.3.4 and earlier allows remote authenticated users to expose sensitive data. The storefront messages template renders stored message text as HTML without first passing it through the client-side escaper, enabling injected markup to execute in a viewer's browser. Exploitation requires administrative privileges and user interaction; the reported consequence is sensitive information disclosure.

CVSS severity6.1
Medium
EPSS probability1.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Adobe Magento Open Source 2.3.4 and earlier allows remote authenticated users to expose sensitive data. The storefront messages template renders stored message text as HTML without first passing it through the client-side escaper, enabling injected markup to execute in a viewer's browser. Exploitation requires administrative privileges and user interaction; the reported consequence is sensitive information disclosure.

The record

CVE
CVE-2020-9581
Published
Jun 26, 2020
Updated
Aug 4, 2024
Vendor
Adobe
Product
Magento Open Source
Classifications
CWE-79, T1059.007
Attack vector
Unavailable
Privileges
admin

Timeline

How it unfolded

  1. Jun 26, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier versions

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesadmin

What is affected?

Adobe · Magento Open Sourceversion=2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier versions

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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