CVE-2026-39498 - Vulnerability Details - OpenCVE

Shop manager PHP Object Injection in YayMail <= 4.3.3 versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00359.

Exploitation none

Automatable no

Technical Impact total

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

Vendor Product Default status Versions

Yeeaddons

YayMail

unaffected

Version	Status	Constraints
`n/a`	affected	≤ 4.3.3

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress YayMail Plugin to the latest available version (at least 4.3.4).

Workaround

No workaround given by the vendor.

References

Link	Providers
https://patchstack.com/database/wordpress/plugin/yaymail/vulnerability/wordpress-yaymail-plugin-4-3-3-php-object-injection-vulnerability?_s_id=cve

History

Tue, 16 Jun 2026 15:30:00 +0000

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

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

Type	Values Removed	Values Added
Description		Shop manager PHP Object Injection in YayMail <= 4.3.3 versions.
Title		WordPress YayMail plugin <= 4.3.3 - PHP Object Injection vulnerability
Weaknesses		CWE-502
References		https://patchstack.com/database/wordpress/plugin/yaymail/vulnerability/wordpress-yaymail-plugin-4-3-3-php-object-injection-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-06-15T20:17:54.326Z

Updated: 2026-06-16T14:21:20.468Z

Reserved: 2026-04-07T10:47:43.843Z

Link: CVE-2026-39498

Vulnrichment

Updated: 2026-06-16T14:21:12.710Z

NVD

Status : Deferred

Published: 2026-06-15T21:16:45.103

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

Link: CVE-2026-39498

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-16T22:45:03Z

Weaknesses

CWE-502

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-39498", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "state": "PUBLISHED", "assignerShortName": "Patchstack", "dateReserved": "2026-04-07T10:47:43.843Z", "datePublished": "2026-06-15T20:17:54.326Z", "dateUpdated": "2026-06-16T14:21:20.468Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-06-15T20:17:54.326Z"}, "title": "WordPress YayMail plugin <= 4.3.3 - PHP Object Injection vulnerability", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-586", "descriptions": [{"lang": "en", "value": "CAPEC-586 Object Injection"}]}], "affected": [{"vendor": "Yeeaddons", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "packageName": "yaymail", "product": "YayMail", "versions": [{"lessThanOrEqual": "4.3.3", "status": "affected", "version": "n/a", "versionType": "custom", "changes": [{"at": "4.3.4", "status": "unaffected"}]}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Shop manager PHP Object Injection in YayMail <= 4.3.3 versions."}], "value": "Shop manager PHP Object Injection in YayMail <= 4.3.3 versions."}], "references": [{"tags": ["vdb-entry"], "url": "https://patchstack.com/database/wordpress/plugin/yaymail/vulnerability/wordpress-yaymail-plugin-4-3-3-php-object-injection-vulnerability?_s_id=cve"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"}}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Update the WordPress YayMail Plugin to the latest available version (at least 4.3.4)."}], "value": "Update the WordPress YayMail Plugin to the latest available version (at least 4.3.4)."}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "daroo | Patchstack Bug Bounty Program"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-16T14:21:07.593687Z", "id": "CVE-2026-39498", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T14:21:20.468Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-39498", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-06-16T14:21:07.593687Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T14:21:12.710Z"}}], "cna": {"title": "WordPress YayMail plugin <= 4.3.3 - PHP Object Injection vulnerability", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "daroo | Patchstack Bug Bounty Program"}], "impacts": [{"capecId": "CAPEC-586", "descriptions": [{"lang": "en", "value": "CAPEC-586 Object Injection"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Yeeaddons", "product": "YayMail", "versions": [{"status": "affected", "changes": [{"at": "4.3.4", "status": "unaffected"}], "version": "n/a", "versionType": "custom", "lessThanOrEqual": "4.3.3"}], "packageName": "yaymail", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update the WordPress YayMail Plugin to the latest available version (at least 4.3.4).", "supportingMedia": [{"type": "text/html", "value": "Update the WordPress YayMail Plugin to the latest available version (at least 4.3.4).", "base64": false}]}], "references": [{"url": "https://patchstack.com/database/wordpress/plugin/yaymail/vulnerability/wordpress-yaymail-plugin-4-3-3-php-object-injection-vulnerability?_s_id=cve", "tags": ["vdb-entry"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "Shop manager PHP Object Injection in YayMail <= 4.3.3 versions.", "supportingMedia": [{"type": "text/html", "value": "Shop manager PHP Object Injection in YayMail <= 4.3.3 versions.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-06-15T20:17:54.326Z"}}}, "cveMetadata": {"cveId": "CVE-2026-39498", "state": "PUBLISHED", "dateUpdated": "2026-06-16T14:21:20.468Z", "dateReserved": "2026-04-07T10:47:43.843Z", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "datePublished": "2026-06-15T20:17:54.326Z", "assignerShortName": "Patchstack"}, "dataVersion": "5.2"}