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CVE-2020-8644

PlaySMS Server-Side Template Injection

9.8 CRITICALActively exploited (CISA KEV)Public exploitEPSS 86.7%
  1. Published5 Feb 2020
  2. Added to CISA KEV3 Nov 2021
  3. Remediation due3 May 2022
Actively exploited (CISA KEV)

PlaySMS contains a server-side template injection vulnerability that allows for remote code execution.

Added to KEV: 3 Nov 2021Federal remediation due: 3 May 2022

Description

PlaySMS before 1.4.3 does not sanitize inputs from a malicious string.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Playsms< 1.4.3

Remediation

Fixed in
Playsms≥ 1.4.3

References

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Frequently asked

Is CVE-2020-8644 being actively exploited?

Yes. CVE-2020-8644 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021.

How severe is CVE-2020-8644?

CVE-2020-8644 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 86.7% probability of exploitation.

Which products are affected by CVE-2020-8644?

Affected products include Playsms.

How do I fix CVE-2020-8644?

Upgrade affected software to a fixed version, for example Playsms 1.4.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-8644 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.