High severity · published Feb 14, 2022
CVE-2021-45347
An Incorrect Access Control vulnerability exists in zzcms 8.2, which lets a malicious user bypass authentication by changing the user name in the cookie to use any password
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
An Incorrect Access Control vulnerability exists in zzcms 8.2, which lets a malicious user bypass authentication by changing the user name in the cookie to use any password.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZZ
Zzcms · Zzcms
8.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45347
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45347
Exploit
https://github.com/forget-code/zzcms/issues/2
More from Zzcms
9.8
CVE-2025-22957
A SQL injection vulnerability exists in the front-end of the website in ZZCMS <= 2023, which can be exploited without any authentication
9.8
CVE-2025-0565
ZZCMS index.php sql injection
9.8
CVE-2024-52724
ZZCMS 2023 was discovered to contain a SQL injection vulnerability in /q/show.php
9.8
CVE-2024-10293
ZZCMS functions.php Ebak_SetGotoPak unrestricted upload
9.8
CVE-2024-10292
ZZCMS ChangeTable.php unrestricted upload