Medium severity6.1NVD Advisory· Published Jan 3, 2024· Updated Jun 17, 2026

CVE-2023-6621

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Wpexperts/Post SMTP
cpe:2.3:a:wpexperts:post_smtp:*:*:*:*:*:wordpress:*:*
Range: <2.8.7
WordPress/Post SMTPcpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <2.8.7
Package: https://wordpress.org/plugins/post-smtp

Patches

Vulnerability mechanics

References

wpscan.com/vulnerability/b49ca336-5bc2-4d72-a9a5-b8c020057928nvdExploitThird Party Advisory

News mentions

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cvss	0.397
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000