CVE-2023-53878
Member Login Script 3.3 Client-Side Request Desynchronization Vulnerability
- State
- Published
- Severity
- 6.9 Medium
- Published
- Dec 15, 2025
- Updated
- May 12, 2026
- Reserved
- Dec 13, 2025
Description
Member Login Script 3.3 contains a client-side desynchronization vulnerability that allows attackers to manipulate HTTP request handling by exploiting Content-Length header parsing. Attackers can send crafted POST requests with smuggled secondary requests to potentially bypass server-side request processing controls.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Affected Products
| Product | Versions |
|---|---|
Member Login ScriptPhpjabbers |
|
References
- ExploitDB-51710exploit
- Product Webpageproduct
- VulnCheck Advisory: Member Login Script 3.3 Client-Side Request Desynchronization Vulnerabilitythird-party-advisory
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