CVE-2025-32079Public exploitNetwork attack vector

Administrator-triggered request failures via unvalidated mentor weights

Published Apr 11, 2025 · Updated Jul 7, 2025

Improper input validation in GrowthExperiments 1.39 through 1.43 allows remote authenticated users to disrupt mentored users' requests. The extension fails to invoke StructuredMentorListValidator when MediaWiki:GrowthMentors.json is saved, permitting a string where Mentor requires an integer weight. Administrator rights to edit the configuration are required, and only users with an assigned mentor and the Help Panel enabled encounter fatal request errors.

CVSS severity6.5
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in GrowthExperiments 1.39 through 1.43 allows remote authenticated users to disrupt mentored users' requests. The extension fails to invoke StructuredMentorListValidator when MediaWiki:GrowthMentors.json is saved, permitting a string where Mentor requires an integer weight. Administrator rights to edit the configuration are required, and only users with an assigned mentor and the Help Panel enabled encounter fatal request errors.

The record

CVE
CVE-2025-32079
Published
Apr 11, 2025
Updated
Jul 7, 2025
Vendor
Wikimedia Foundation
Product
GrowthExperiments
Classifications
CWE-20, CAPEC-469, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 7, 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?

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

  1. Affected versionversion=1.39 <=1.43

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Wikimedia Foundation · GrowthExperimentsversion=1.39 <=1.43

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CAPEC-469HTTP DoS
T1499.004Application or System Exploitation

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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