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CVE-2020-8644

98
FAUCET Score

CVE-2020-8644 is a critical remote code execution (RCE) vulnerability affecting PlaySMS versions prior to 1.4.3, stemming from a lack of input sanitization. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network without authentication, allowing attackers to achieve full compromise of confidentiality, integrity, and availability. This flaw is actively exploited in the wild, with readily available exploit modules in Metasploit and Nuclei templates, and has garnered significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.3CPE matchmatch criteria
cpe:2.3:a:playsms:playsms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
86.69%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: PlaySMS index.php Unauthenticated Template Injection Code Execution · Feb 5, 2020
Nuclei: CVE-2020-8644 · Jul 5, 2022
ExploitDB: EDB-48335 · Apr 16, 2020
This CVE's current EPSS score of 0.8669 is in the 99th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/157106/PlaySMS-index.php-Unauthenticated-Template-Injection-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
forum.playsms.org / t/playsms-1-4-3-has-been-released/2704
Broken LinkRelease NotesVendor Advisory
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