Strix
26.1K

CVE-2021-47667

CRITICALCVSS 10/10EPSS 26.28%

Last modified

CVE-2021-47667 is a critical-severity vulnerability rated 10/10 on the CVSS scale. An OS command injection vulnerability in lib/NSSDropoff.php in ZendTo 5.24-3 through 6.x before 6.10-7 allows unauthenticated remote attackers to execute arbitrary commands via shell metacharacters in the tmp_name parameter when dropping off a file via a POST /dropoff request.. EPSS estimates a 26.28% chance of exploitation in the next 30 days.

Description

An OS command injection vulnerability in lib/NSSDropoff.php in ZendTo 5.24-3 through 6.x before 6.10-7 allows unauthenticated remote attackers to execute arbitrary commands via shell metacharacters in the tmp_name parameter when dropping off a file via a POST /dropoff request.

Metrics

CVSS 3.1
10/10

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

EPSS Probability
26.28%

97.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2021-47667?
An OS command injection vulnerability in lib/NSSDropoff.php in ZendTo 5.24-3 through 6.x before 6.10-7 allows unauthenticated remote attackers to execute arbitrary commands via shell metacharacters in the tmp_name parameter when dropping off a file via a POST /dropoff request.
How severe is CVE-2021-47667?
CVE-2021-47667 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 26.28% probability of exploitation in the next 30 days.
How do I fix CVE-2021-47667?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-47667?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST