Is CVE-2021-45467 actively exploited?

Yes. CVE-2021-45467 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-45467 be exploited remotely?

The attack vector of CVE-2021-45467 has not been classified yet.

What is the CVSS score of CVE-2021-45467?

CVE-2021-45467 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-45467

UNKNOWNCISA KEVIN THE WILD

CVE-2021-45467

Published: April 11, 2026

EPSS:87.87%probability of exploitation in 30 daysPercentile:99.5th

Official Description

In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, an unauthenticated attacker can use %00 bytes to cause /user/loader.php to register an arbitrary API key, as demonstrated by a /user/loader.php?api=1&scripts= .%00./.%00./api/account_new_create&acc=guadaapi URI. Any number of %00 instances can be used, e.g., .%00%00%00./.%00%00%00./api/account_new_create could also be used for the scripts parameter.

NVD Source

Technical Analysis

CVE-2021-45467 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-45467 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.