CVE-2023-53878

UNKNOWN 0.0

Member Login Script 3.3 Client-Side Request Desynchronization Vulnerability

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-444
Vendor	phpjabbers
Product	member login script
Published	Dec 15, 2025
Last Updated	Apr 7, 2026

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Affected Versions

Phpjabbers / Member Login Script

3.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/51710 phpjabbers.com: https://www.phpjabbers.com/member-login-script/ vulncheck.com: https://www.vulncheck.com/advisories/member-login-script-client-side-request-desynchronization-vulnerability

Credits

nu11secur1ty