Unauthenticated Administrator access via predictable crawler hash
Published Aug 21, 2024 · Updated Apr 29, 2026
Privilege escalation in LiteSpeed Cache for WordPress 6.3.0.1 and earlier allows remote attackers to gain Administrator access. The Router role-simulation path accepts a six-character MT19937 hash seeded from one million possible microsecond values, then passes the cookie-selected user ID to wp_set_current_user. Remote attackers must identify an Administrator user ID and brute-force or obtain the hash; the disclosed generation path is exploitable on Linux but not Windows.
Summary
What happened
Privilege escalation in LiteSpeed Cache for WordPress 6.3.0.1 and earlier allows remote attackers to gain Administrator access. The Router role-simulation path accepts a six-character MT19937 hash seeded from one million possible microsecond values, then passes the cookie-selected user ID to wp_set_current_user. Remote attackers must identify an Administrator user ID and brute-force or obtain the hash; the disclosed generation path is exploitable on Linux but not Windows.
The record
- CVE
- CVE-2024-28000
- Published
- Aug 21, 2024
- Updated
- Apr 29, 2026
- Vendor
- LiteSpeed Technologies
- Product
- LiteSpeed Cache for WordPress
- Classifications
- CWE-266, T1136.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 21, 2024CVE publishedPublication date reported by the CVE source.
- Apr 29, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=6.3.0.1 changes=[{"at":"6.4","status":"unaffected"}]
- Affected versionversion=1.9 <=6.3.0.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- CVE-2024-28000 PoCfunctional · unverified
- LiteSpeed Cache WordPress Plugin 6.3.0.1 Privilege Escalationfunctional · demonstrated
- ProjectDiscovery CVE-2024-28000 templatefunctional · validated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- More than 12,000 blocked exploitation attemptsreported exploitation
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo