{"id":"CVE-2020-8644","kind":"vulnerability","aliases":["CVE-2020-8644"],"related":[],"title":"PlaySMS PlaySMS: PlaySMS Server-Side Template Injection Vulnerability","description":"PlaySMS contains a server-side template injection vulnerability that allows for remote code execution.\n\nCISA required action: Apply updates per vendor instructions.","summary":"PlaySMS, an open-source SMS gateway web application, has a server-side template injection flaw that lets remote users inject template code. An attacker can run code on the server hosting PlaySMS.","severity":"critical","cvss":9.8,"epss":0.86689,"exploited":true,"exploited_at":"2021-11-03T00:00:00+00:00","products":[{"name":"PlaySMS PlaySMS","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","package","playsms","self-hosted","sms-gateway"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Apply the vendor's updates for PlaySMS per the vendor instructions referenced by CISA; the fixed version is unknown from the sources.","status":"open","published_at":"2020-02-05T22:15:11+00:00","first_seen_at":"2026-10-23T19:11:53+00:00","triaged_at":"2026-10-23T21:41:51+00:00","updated_at":"2026-10-23T21:57:34+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-23T21:41:51Z","model":"claude-haiku-5-5","output":{"fix":"Apply the vendor's updates for PlaySMS per the vendor instructions referenced by CISA; the fixed version is unknown from the sources.","reach":"internet","impact":"high","summary":"PlaySMS, an open-source SMS gateway web application, has a server-side template injection flaw that lets remote users inject template code. An attacker can run code on the server hosting PlaySMS.","category":"package","who_cares":["playsms","self-hosted","sms-gateway"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker runs arbitrary code on the PlaySMS server remotely.","analyst_note":"Find the affected and fixed PlaySMS versions and the vendor advisory; check the CISA KEV entry and NVD for the vulnerable endpoint and whether auth is required.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000459,"input_tokens":2816,"output_tokens":355,"severity_before":"unknown"},"analyst_status":"queued","analyst_note":"Find the affected and fixed PlaySMS versions and the vendor advisory; check the CISA KEV entry and NVD for the vulnerable endpoint and whether auth is required.","search":"'-2020':11A,14A '-8644':12A,15A 'action':78C 'allow':71C 'appli':79C 'applic':35B 'attack':52B 'cisa':76C 'code':50B,55B,74C 'contain':62C 'cve':10A,13A 'execut':75C 'exploit':18B 'flaw':43B 'gateway':26B,33B 'host':23B,59B 'inject':8A,42B,48B,68C 'instruct':83C 'let':45B 'open':30B 'open-sourc':29B 'packag':19B 'per':81C 'playsm':1A,2A,3A,20B,27B,60B,61C 'playsms':16A,17A 'remot':46B,73C 'requir':77C 'run':54B 'self':22B 'self-host':21B 'server':5A,39B,58B,65C 'server-sid':4A,38B,64C 'side':6A,40B,66C 'sms':25B,32B 'sms-gateway':24B 'sourc':31B 'templat':7A,41B,49B,67C 'updat':80C 'user':47B 'vendor':82C 'vulner':9A,69C 'web':34B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2020-02-05T22:15:11+00:00","kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2020-8644","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-8644","severity":null,"published_at":"2021-11-03T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:53+00:00","fetched_at":"2026-10-25T17:39:59+00:00","note":null},{"source":"epss","external_id":"CVE-2020-8644","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-8644","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:43+00:00","fetched_at":"2026-10-23T19:13:43+00:00","note":null},{"source":"nvd","external_id":"CVE-2020-8644","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8644","severity":null,"published_at":"2020-02-05T22:15:11+00:00","modified_at":"2026-06-17T03:26:41+00:00","first_seen_at":"2026-10-23T21:57:34+00:00","fetched_at":"2026-10-23T21:57:34+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}