CVE-2020-8644
PlaySMS Server-Side Template Injection Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 86.69% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 16 April 2020
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-94
- Affected
- playsms/playsms
- Source
- cve@mitre.org
EPSS 86.7% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-8644
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/157106/PlaySMS-index.php-Unauthenticated-Template-Injection-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://forum.playsms.org/t/playsms-1-4-3-has-been-released/2704Broken Link, Release Notes, Vendor Advisory
- https://playsms.org/2020/02/05/playsms-1-4-3-has-been-released/Vendor Advisory
- https://research.nccgroup.com/2020/02/11/technical-advisory-playsms-pre-authentication-remote-code-execution-cve-2020-8644/Exploit
- http://packetstormsecurity.com/files/157106/PlaySMS-index.php-Unauthenticated-Template-Injection-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://forum.playsms.org/t/playsms-1-4-3-has-been-released/2704Broken Link, Release Notes, Vendor Advisory
- https://playsms.org/2020/02/05/playsms-1-4-3-has-been-released/Vendor Advisory
- https://research.nccgroup.com/2020/02/11/technical-advisory-playsms-pre-authentication-remote-code-execution-cve-2020-8644/Exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8644US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.