CVE-2020-8644
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
CVE-2020-8644 is a critical vulnerability (CVSS 9.8) in Playsms, published February 5, 2020. CISA lists it as known to be exploited, since November 3, 2021. EUVD reports exploitation since November 3, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 86.3%, the 99th percentile. No source names a fixed version.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 86.3%EPSS, 99th percentile
- Exploitation
- ExploitedCISA KEV,
- Fixed in
- No fix listedNo source names one
Description
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | PlaySMS index.php Unauthenticated Template Injection Code Execution | 2020-02-05 |
| Exploit-DB | PlaySMS - index.php Unauthenticated Template Injection Code Execution (Metasploit) | 2020-04-16 |
| PoC in GitHub | H3rm1tR3b0rn/CVE-2020-8644-PlaySMS-1.4 | 2023-07-25 |
| Nuclei | playSMS <1.4.3 - Remote Code Execution |
What each source reports
NVD Score used
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
- Record
CVE-2020-8644- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-94
- Updated
- 2026-11-02
CVE List
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
- Record
CVE-2020-8644- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
EUVDEUVD-2020-29492
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
- Record
EUVD-2020-29492- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q834-vxjw-r888
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
- Record
GHSA-q834-vxjw-r888- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20, CWE-74, CWE-94
- Updated
- 2026-11-02
CISA KEVNo score
PlaySMS Server-Side Template Injection Vulnerability
PlaySMS contains a server-side template injection vulnerability that allows for remote code execution.
- Record
CVE-2020-8644- Weakness
- CWE-94
- Updated
- 2026-11-02
OSV
PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.
- Record
CVE-2020-8644- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| first indexed | CVE List, EUVD, Exploit-DB, GitHub Advisories, CISA KEV, Metasploit, Nuclei, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
playsms.org/2020/02/05/playsms-1-4-3-has-been-released
forum.playsms.org/t/playsms-1-4-3-has-been-released/2704
research.nccgroup.com/2020/02/11/technical-advisory-playsms-pre-authentication-remote-code-execution-cve-2020-8644
packetstormsecurity.com/files/157106/PlaySMS-index.php-Unauthenticated-Template-Injection-Code-Execution.html
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8644
nvd.nist.gov/vuln/detail/CVE-2020-8644
github.com/advisories/GHSA-q834-vxjw-r888