CVE-2020-23065Public exploitNetwork attack vector

Authenticated script execution via Flash callback parameter

Published Jun 26, 2023 · Updated Feb 13, 2025

Cross-site scripting in eZ Publish Platform and Legacy 5.4 allows remote authenticated users to run script through bundled video-js.swf. The Flash player accepts the readyFunction query parameter and invokes the named JavaScript callback in the hosting page origin. Exploitation requires DemoBundle or an ezdemo extension, authenticated access, and user interaction; script runs with the affected site's browser privileges.

CVSS severity5.4
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in eZ Publish Platform and Legacy 5.4 allows remote authenticated users to run script through bundled video-js.swf. The Flash player accepts the readyFunction query parameter and invokes the named JavaScript callback in the hosting page origin. Exploitation requires DemoBundle or an ezdemo extension, authenticated access, and user interaction; script runs with the affected site's browser privileges.

The record

CVE
CVE-2020-23065
Published
Jun 26, 2023
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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