CVE-2023-6621 - Vulnerability Details - OpenCVE

The POST SMTP WordPress plugin before 2.8.7 does not sanitise and escape the msg parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00123.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Wpexperts	Post Smtp

Configuration 1 [-]

cpe:2.3:a:wpexperts:post_smtp:*:*:*:*:*:wordpress:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-58844	The POST SMTP WordPress plugin before 2.8.7 does not sanitise and escape the msg parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://wpscan.com/vulnerability/b49ca336-5bc2-4d72-a9a5-b8c020057928

History

Wed, 18 Jun 2025 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2024-01-03T08:32:42.957Z

Updated: 2025-06-18T15:36:31.330Z

Reserved: 2023-12-08T10:31:08.620Z

Link: CVE-2023-6621

Vulnrichment

Updated: 2024-08-02T08:35:14.834Z

NVD

Status : Modified

Published: 2024-01-03T09:15:11.440

Modified: 2025-06-18T16:15:24.997

Link: CVE-2023-6621

Redhat

No data.

OpenCVE Enrichment

No data.

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