CVE-2020-21526
CRITICAL
9.8
CVSS Score
Published: September 30, 2020 at 02:43 PM UTC
Updated: June 17, 2026 at 03:03 AM UTC
1 product affected across 1 vendorHalo
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/halo-dev/halo/issues/421CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-22
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