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Medium severity · published Jan 3, 2024
CVE-2023-6621
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…
6.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PS
Post Smtp · Wpexperts
before 2.8.7 · source: NVD
Affected product
PS
Post Smtp
Wpexperts
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6621
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6621
Exploit
https://wpscan.com/vulnerability/b49ca336-5bc2-4d72-a9a5-b8c020057928
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