HOMEVULNERABILITIESCVE-2021-47830
MEDIUM

CVE-2021-47830

CWE-352Published: January 21, 2026· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

GetSimple CMS My SMTP Contact Plugin 1.1.1 contains a cross-site request forgery (CSRF) vulnerability. Attackers can craft a malicious webpage that, when visited by an authenticated administrator, can change SMTP configuration settings in the plugin. This may allow unauthorized changes but does not directly enable remote code execution.

NVD Source

Technical Analysis

CVE-2021-47830 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected Vendors & Products

get-simple1 product(s)
getsimplecms
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.exploit-db.com/exploits/49774
ADVISORYhttps://www.exploit-db.com/exploits/49798
ADVISORYhttps://www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-csrf

All References (5)

→
http://get-simple.infoProduct
→
https://github.com/GetSimpleCMS/GetSimpleCMSProduct
→
https://www.exploit-db.com/exploits/49774Exploit · Third Party Advisory · VDB Entry
→
https://www.exploit-db.com/exploits/49798Exploit · Third Party Advisory · VDB Entry
→
https://www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-csrfThird Party Advisory

Quick Facts

CVE IDCVE-2021-47830
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-352
CISA KEVNo
Affected1 vendor(s)
PublishedJan 21, 2026

Related CVEs (CWE-352)

CVE-2017-5145
10.0
CVE-2025-32642
10.0
CVE-2025-23922
10.0
CVE-2024-34502
9.8
CVE-2017-16780
9.8
CVE-2023-43649
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-47830 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2021-47830·NVD