CVE-2023-6621 - Vulnerability Details - OpenCVE

Description

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.

Published: 2024-01-03

Score: 6.1 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

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

Vendor Product Default status Versions

Unknown

POST SMTP

unaffected

Version	Status	Constraints
`0`	affected	< 2.8.7

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

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.

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 0.00254.

Exploitation poc

Automatable no

Technical Impact partial

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'}`

Subscriptions

Wpexperts Post Smtp

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.

Weaknesses

CWE-79

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