CVE-2025-61647 - Vulnerability Details - OpenCVE

Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Api/Rest/Handler/UserInfoHandler.Php. This issue affects CheckUser: from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Wikimedia	Checkuser

No data.

No data.

References

Link	Providers
https://phabricator.wikimedia.org/T399093

History

Wed, 04 Feb 2026 12:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Wikimedia Wikimedia checkuser
Vendors & Products		Wikimedia Wikimedia checkuser

Tue, 03 Feb 2026 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 03 Feb 2026 00:15:00 +0000

Type	Values Removed	Values Added
Description		Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Api/Rest/Handler/UserInfoHandler.Php. This issue affects CheckUser: from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4.
Title		UserInfoCard: Don't allow access to information about users who are suppressed if you don't have suppressor rights
References		https://phabricator.wikimedia.org/T399093
Metrics		cvssV4_0 `{'score': 0.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U'}`

MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2026-02-03T00:02:04.402Z

Updated: 2026-02-03T21:04:17.316Z

Reserved: 2025-09-29T13:18:40.092Z

Link: CVE-2025-61647

Vulnrichment

Updated: 2026-02-03T21:04:14.460Z

NVD

Status : Awaiting Analysis

Published: 2026-02-03T00:16:10.520

Modified: 2026-02-03T16:44:03.343

Link: CVE-2025-61647

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-61647", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2025-09-29T13:18:40.092Z", "datePublished": "2026-02-03T00:02:04.402Z", "dateUpdated": "2026-02-03T21:04:17.316Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "CheckUser", "programFiles": ["src/Api/Rest/Handler/UserInfoHandler.php"], "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/CheckUser/+/refs/heads/master", "vendor": "Wikimedia Foundation", "versions": [{"lessThan": "*", "status": "affected", "version": "a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Vulnerability in Wikimedia Foundation CheckUser.<p> This vulnerability is associated with program files <tt>src/Api/Rest/Handler/UserInfoHandler.Php</tt>.</p><p>This issue affects CheckUser: from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4.</p>"}], "value": "Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Api/Rest/Handler/UserInfoHandler.Php.\n\nThis issue affects CheckUser: from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 0.3, "baseSeverity": "LOW", "exploitMaturity": "UNREPORTED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-02-03T00:02:04.402Z"}, "references": [{"url": "https://phabricator.wikimedia.org/T399093"}], "source": {"discovery": "UNKNOWN"}, "title": "UserInfoCard: Don't allow access to information about users who are suppressed if you don't have suppressor rights", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-03T21:04:11.291096Z", "id": "CVE-2025-61647", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-03T21:04:17.316Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-61647", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-03T21:04:11.291096Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-03T21:04:14.460Z"}}], "cna": {"title": "UserInfoCard: Don't allow access to information about users who are suppressed if you don't have suppressor rights", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 0.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U", "exploitMaturity": "UNREPORTED", "providerUrgency": "NOT_DEFINED", "userInteraction": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/CheckUser/+/refs/heads/master", "vendor": "Wikimedia Foundation", "product": "CheckUser", "versions": [{"status": "affected", "version": "a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4", "lessThan": "*", "versionType": "semver"}], "programFiles": ["src/Api/Rest/Handler/UserInfoHandler.php"], "defaultStatus": "unaffected"}], "references": [{"url": "https://phabricator.wikimedia.org/T399093"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "value": "Vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Api/Rest/Handler/UserInfoHandler.Php.\n\nThis issue affects CheckUser: from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4.", "supportingMedia": [{"type": "text/html", "value": "Vulnerability in Wikimedia Foundation CheckUser.<p> This vulnerability is associated with program files <tt>src/Api/Rest/Handler/UserInfoHandler.Php</tt>.</p><p>This issue affects CheckUser: from a3dc1bbcc33acbcca6831d6afaccbb1054c93a57, 0584eb2ad564648aa3ce9c555dd044dda02b55f4.</p>", "base64": false}]}], "providerMetadata": {"orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-02-03T00:02:04.402Z"}}}, "cveMetadata": {"cveId": "CVE-2025-61647", "state": "PUBLISHED", "dateUpdated": "2026-02-03T21:04:17.316Z", "dateReserved": "2025-09-29T13:18:40.092Z", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "datePublished": "2026-02-03T00:02:04.402Z", "assignerShortName": "wikimedia-foundation"}, "dataVersion": "5.2"}