CVE-2021-47778
GetSimple CMS My SMTP Contact Plugin 1.1.2 contains a PHP code injection vulnerability.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
GetSimple CMS My SMTP Contact Plugin 1.1.2 contains a PHP code injection vulnerability. An authenticated administrator can inject arbitrary PHP code through plugin configuration parameters, leading to remote code execution on the server.
- CVSS 4.0
- 8.6 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 1.29% probability · 70th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- get-simple/getsimplecms
- Source
- disclosure@vulncheck.com
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://get-simple.infoProduct
- https://github.com/GetSimpleCMS/GetSimpleCMSProduct
- https://github.com/boku7/gsSMTP-Csrf2Xss2RCE/Exploit, Third Party Advisory
- https://www.exploit-db.com/exploits/49774Exploit, Third Party Advisory, VDB Entry
- https://www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-php-code-injectionThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.