CVE-2026-42656 - Vulnerability Details - OpenCVE

Subscriber Cross Site Scripting (XSS) in Contest Gallery <= 28.1.6 versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00205.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Wasiliy Strecker

Contest Gallery

unaffected

Version	Status	Constraints
`n/a`	affected	≤ 28.1.6

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress Contest Gallery Plugin to the latest available version (at least 29.0.0).

Workaround

No workaround given by the vendor.

References

Link	Providers
https://patchstack.com/database/wordpress/plugin/contest-gallery/vulnerability/wordpress-contest-gallery-plugin-28-1-6-cross-site-scripting-xss-vulnerability?_s_id=cve

History

Tue, 16 Jun 2026 06:30:00 +0000

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

Mon, 15 Jun 2026 20:30:00 +0000

Type	Values Removed	Values Added
Description		Subscriber Cross Site Scripting (XSS) in Contest Gallery <= 28.1.6 versions.
Title		WordPress Contest Gallery plugin <= 28.1.6 - Cross Site Scripting (XSS) vulnerability
Weaknesses		CWE-79
References		https://patchstack.com/database/wordpress/plugin/contest-gallery/vulnerability/wordpress-contest-gallery-plugin-28-1-6-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-06-15T20:18:39.220Z

Updated: 2026-06-16T01:26:07.488Z

Reserved: 2026-04-29T09:04:43.154Z

Link: CVE-2026-42656

Vulnrichment

Updated: 2026-06-16T01:26:00.892Z

NVD

Status : Deferred

Published: 2026-06-15T21:16:55.220

Modified: 2026-06-15T21:24:32.790

Link: CVE-2026-42656

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42656", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "state": "PUBLISHED", "assignerShortName": "Patchstack", "dateReserved": "2026-04-29T09:04:43.154Z", "datePublished": "2026-06-15T20:18:39.220Z", "dateUpdated": "2026-06-16T01:26:07.488Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-06-15T20:18:39.220Z"}, "title": "WordPress Contest Gallery plugin <= 28.1.6 - Cross Site Scripting (XSS) vulnerability", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-588", "descriptions": [{"lang": "en", "value": "CAPEC-588 DOM-Based XSS"}]}], "affected": [{"vendor": "Wasiliy Strecker", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "packageName": "contest-gallery", "product": "Contest Gallery", "versions": [{"lessThanOrEqual": "28.1.6", "status": "affected", "version": "n/a", "versionType": "custom", "changes": [{"at": "29.0.0", "status": "unaffected"}]}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Subscriber Cross Site Scripting (XSS) in Contest Gallery <= 28.1.6 versions."}], "value": "Subscriber Cross Site Scripting (XSS) in Contest Gallery <= 28.1.6 versions."}], "references": [{"tags": ["vdb-entry"], "url": "https://patchstack.com/database/wordpress/plugin/contest-gallery/vulnerability/wordpress-contest-gallery-plugin-28-1-6-cross-site-scripting-xss-vulnerability?_s_id=cve"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L"}}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Update the WordPress Contest Gallery Plugin to the latest available version (at least 29.0.0)."}], "value": "Update the WordPress Contest Gallery Plugin to the latest available version (at least 29.0.0)."}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "endy | Patchstack Bug Bounty Program"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-16T01:11:53.920956Z", "id": "CVE-2026-42656", "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": "2026-06-16T01:26:07.488Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-42656", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-16T01:11:53.920956Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T01:26:00.892Z"}}], "cna": {"title": "WordPress Contest Gallery plugin <= 28.1.6 - Cross Site Scripting (XSS) vulnerability", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "endy | Patchstack Bug Bounty Program"}], "impacts": [{"capecId": "CAPEC-588", "descriptions": [{"lang": "en", "value": "CAPEC-588 DOM-Based XSS"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Wasiliy Strecker", "product": "Contest Gallery", "versions": [{"status": "affected", "changes": [{"at": "29.0.0", "status": "unaffected"}], "version": "n/a", "versionType": "custom", "lessThanOrEqual": "28.1.6"}], "packageName": "contest-gallery", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update the WordPress Contest Gallery Plugin to the latest available version (at least 29.0.0).", "supportingMedia": [{"type": "text/html", "value": "Update the WordPress Contest Gallery Plugin to the latest available version (at least 29.0.0).", "base64": false}]}], "references": [{"url": "https://patchstack.com/database/wordpress/plugin/contest-gallery/vulnerability/wordpress-contest-gallery-plugin-28-1-6-cross-site-scripting-xss-vulnerability?_s_id=cve", "tags": ["vdb-entry"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "Subscriber Cross Site Scripting (XSS) in Contest Gallery <= 28.1.6 versions.", "supportingMedia": [{"type": "text/html", "value": "Subscriber Cross Site Scripting (XSS) in Contest Gallery <= 28.1.6 versions.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-06-15T20:18:39.220Z"}}}, "cveMetadata": {"cveId": "CVE-2026-42656", "state": "PUBLISHED", "dateUpdated": "2026-06-16T01:26:07.488Z", "dateReserved": "2026-04-29T09:04:43.154Z", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "datePublished": "2026-06-15T20:18:39.220Z", "assignerShortName": "Patchstack"}, "dataVersion": "5.2"}