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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