CVE-2021-45467

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-862

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://control-webpanel.com/changelogRelease Notes, Vendor Advisory
https://octagon.net/blog/2022/01/22/cve-2021-45467-cwp-centos-web-panel-preauth-rce/Exploit, Third Party Advisory
https://control-webpanel.com/changelogRelease Notes, Vendor Advisory
https://octagon.net/blog/2022/01/22/cve-2021-45467-cwp-centos-web-panel-preauth-rce/Exploit, Third Party Advisory

Timeline

Published: Dec 26, 2022
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-454689.8Imperva Web Application Firewall (WAF) before 2021-12-23 allows remote unauthenticated attackers to use "Content-Encoding: gzip" to evade WA CVE-2021-454697.8In __f2fs_setxattr in fs/f2fs/xattr.c in the Linux kernel through 5.15.11, there is an out-of-bounds memory access when an inode has an inva CVE-2021-454707.5lib/DatabaseLayer.py in cve-search before 4.1.0 allows regular expression injection, which can lead to ReDoS (regular expression denial of s CVE-2021-454715.3In MediaWiki through 1.37, blocked IP addresses are allowed to edit EntitySchema items.CVE-2021-454726.1In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 format CVE-2021-454736.1In MediaWiki through 1.37, Wikibase item descriptions allow XSS, which is triggered upon a visit to an action=info URL (aka a page-informati CVE-2021-454746.1In MediaWiki through 1.37, the Special:ImportFile URI (aka FileImporter) allows XSS, as demonstrated by the clientUrl parameter.CVE-2021-454755.3Yordam Library Information Document Automation product before version 19.02 has an unauthenticated Information disclosure vulnerability.CVE-2021-454764.7Yordam Library Information Document Automation product before version 19.02 has an unauthenticated reflected XSS vulnerability.CVE-2021-454776.5Improper Handling of Parameters vulnerability in Bordam Information Technologies Library Automation System allows Collect Data as Provided b CVE-2021-454786.5Improper Handling of Parameters vulnerability in Bordam Information Technologies Library Automation System allows Collect Data as Provided b CVE-2021-454795.4Improper Neutralization of Input During Web Page Generation vulnerability in Yordam Information Technologies Library Automation System allow