CVE-2020-9382Public exploitNetwork attack vector

Stored script execution via unchecked widget titles

Published Feb 24, 2020 · Updated Aug 4, 2024

Injection in the Widgets extension for MediaWiki 1.4.0 and earlier allows remote authenticated users to execute wiki pages as widgets. WidgetRenderer passes the parser function's untrusted widget name to the wiki Smarty resource without enforcing the Widget namespace, so other pages are compiled as widget content. An account able to edit and invoke {{#widget:}} can cause stored style or script content to run when the affected page is rendered, compromising page confidentiality and integrity.

CVSS severity5.4
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Injection in the Widgets extension for MediaWiki 1.4.0 and earlier allows remote authenticated users to execute wiki pages as widgets. WidgetRenderer passes the parser function's untrusted widget name to the wiki Smarty resource without enforcing the Widget namespace, so other pages are compiled as widget content. An account able to edit and invoke {{#widget:}} can cause stored style or script content to run when the affected page is rendered, compromising page confidentiality and integrity.

The record

CVE
CVE-2020-9382
Published
Feb 24, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 24, 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?

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

5.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
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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