CVE-2020-8644
KEVPlaySMS Server-Side Template Injection Vulnerability
Description
PlaySMS contains a server-side template injection vulnerability that allows for remote code execution.
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HPublishedFeb 5, 2020
Last modifiedJun 17, 2026
Added to KEVNov 3, 2021
Remediation dueMay 3, 2022
References
- packetstormsecurity.com/files/157106/PlaySMS-index.php-Unauthenticated-Template-Injection-Code-Execution.htmlExploitThird Party Advisory
- forum.playsms.org/t/playsms-1-4-3-has-been-released/2704Broken LinkRelease Notes
- playsms.org/2020/02/05/playsms-1-4-3-has-been-released/Vendor Advisory
- research.nccgroup.com/2020/02/11/technical-advisory-playsms-pre-authentication-remote-code-execution-cve-2020-8644/Exploit
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8644US Government Resource
0 recent articles mention this CVE
88
Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1637 days
- CVSS
- 9.8 CRITICAL
- EPSS (30-day exploit probability)
- 86.7% · top 1% of all CVEs
- Weakness
- CWE-94
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.