CVE-2020-11025Network attack vector

Authenticated script execution via Customizer navigation

Published Apr 30, 2020 · Updated Aug 4, 2024

Cross-site scripting in WordPress Customizer navigation allows remote authenticated users to execute JavaScript through crafted navigation data. The upstream advisory does not identify the exact parameter or escaping operation, only that the navigation section renders attacker-controlled content as executable script. Exploitation requires a logged-in user with access to the Customizer; impact is script execution in another user's browsing context, with no documented server-side code execution or service interruption.

CVSS severity5.8
Medium
EPSS probability1.53%
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 WordPress Customizer navigation allows remote authenticated users to execute JavaScript through crafted navigation data. The upstream advisory does not identify the exact parameter or escaping operation, only that the navigation section renders attacker-controlled content as executable script. Exploitation requires a logged-in user with access to the Customizer; impact is script execution in another user's browsing context, with no documented server-side code execution or service interruption.

The record

CVE
CVE-2020-11025
Published
Apr 30, 2020
Updated
Aug 4, 2024
Vendor
WordPress.org
Product
WordPress
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 30, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>= 3.7.0, < 3.7.33
  2. Affected versionversion=>= 3.8.0, < 3.8.33
  3. Affected versionversion=>= 3.9.0, < 3.9.31
  4. Affected versionversion=>= 4.0.0, < 4.0.30
  5. Affected versionversion=>= 4.1.0, < 4.1.30
  6. Affected versionversion=>= 4.2.0, < 4.2.27
  7. Affected versionversion=>= 4.3.0, < 4.3.23
  8. Affected versionversion=>= 4.4.0, < 4.4.22
  9. Affected versionversion=>= 4.5.0, < 4.5.21
  10. Affected versionversion=>= 4.6.0, < 4.6.18
  11. Affected versionversion=>= 4.7.0, < 4.7.17
  12. Affected versionversion=>= 4.8.0, < 4.8.13
  13. Affected versionversion=>= 4.9.0, < 4.9.14
  14. Affected versionversion=>= 5.0.0, < 5.0.9
  15. Affected versionversion=>= 5.1.0, < 5.1.5
  16. Affected versionversion=>= 5.2.0, < 5.2.6
  17. Affected versionversion=>= 5.3.0, < 5.3.3
  18. Affected versionversion=>= 5.4.0, < 5.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WordPress.org · WordPressversion=>= 3.7.0, < 3.7.33; version=>= 3.8.0, < 3.8.33; version=>= 3.9.0, < 3.9.31; version=>= 4.0.0, < 4.0.30; version=>= 4.1.0, < 4.1.30; version=>= 4.2.0, < 4.2.27; version=>= 4.3.0, < 4.3.23; version=>= 4.4.0, < 4.4.22; version=>= 4.5.0, < 4.5.21; version=>= 4.6.0, < 4.6.18; version=>= 4.7.0, < 4.7.17; version=>= 4.8.0, < 4.8.13; version=>= 4.9.0, < 4.9.14; version=>= 5.0.0, < 5.0.9; version=>= 5.1.0, < 5.1.5; version=>= 5.2.0, < 5.2.6; version=>= 5.3.0, < 5.3.3; version=>= 5.4.0, < 5.4.1

Published CVSS scores

5.8GitHub CNACVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

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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