CVE-2023-6621

6.1 mediumEPSS 0.4%

Medium (6.1) in wpexperts post smtp. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2024-01-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

wpexperts:post_smtp

References

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

Check your stack JSON