Critical severity · published Jan 27, 2026
CVE-2020-36948
VestaCP 0.9.8-26 - 'LoginAs' Insufficient Session Validation
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
VestaCP 0.9.8-26 contains a session token vulnerability in the LoginAs module that allows remote attackers to manipulate authentication tokens. Attackers can exploit insufficient token validation to access user accounts and perform unauthorized login requests without proper administrative permissions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VE
VestaCP · VestaCP
0.9.8-26 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36948
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-36948
vestacp.com
https://vestacp.com/
www.exploit-db.com
https://www.exploit-db.com/exploits/49219
www.vulncheck.com
https://www.vulncheck.com/advisories/vestacp-loginas-insufficient-session-validation
www.vulnerability-lab.com
https://www.vulnerability-lab.com/get_content.php?id=2240
www.vulnerability-lab.com
https://www.vulnerability-lab.com/show.php?user=Benjamin%20K.M.
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