Medium severity · published Nov 27, 2023
CVE-2023-5958
POST SMTP Mailer < 2.7.1 - Unauthenticated Cross-site Scripting
6.1
CVSS
0.5%
EPSS
No
On KEV
Description
The POST SMTP Mailer WordPress plugin before 2.7.1 does not escape email message content before displaying it in the backend, allowing an unauthenticated attacker to perform XSS attacks against highly privileged users.
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)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PS
POST SMTP Mailer ·
before 2.7.1 · source: vendor
PS
Post Smtp · Wpexperts
before 2.7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5958
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5958
Exploit
https://wpscan.com/vulnerability/22fa478d-e42e-488d-9b4b-a8720dec7cee
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4.3
CVE-2023-3178
POST SMTP Mailer < 2.5.7 - Arbitrary Log Deletion via CSRF