CVE-2021-27963
HIGH
8.2
CVSS Score
Published: March 5, 2021 at 01:37 AM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorSonlogger
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.2
Exploit prediction
EPSS 2%
Description
SonLogger before 6.4.1 is affected by user creation with any user permissions profile (e.g., SuperAdmin). An anonymous user can send a POST request to /User/saveUser without any authentication or session header.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 6.4.1
Affected range stops below 6.4.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/erberkan/SonLogger-vulnsx_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://www.sonlogger.com/releasenotesCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-306
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card