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CRITICAL

CVE-2020-21526

CVSS v3

9.8

CRITICAL

EPSS Score

1.3 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith function can be used to bypass it.

Technical details

Published
2020-09-30

Frequently asked questions

What is CVE-2020-21526?

An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith function can be used to bypass it.

Is CVE-2020-21526 actively exploited?

Active exploitation of CVE-2020-21526 has not been confirmed. The EPSS score is 1.3%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-21526?

CVE-2020-21526 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2020-21526 affecting your environment?

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