Auth bypass in Easy-Script Tlguesbook

CVE-2008-5065

TlGuestBook 1.2 allows remote attackers to bypass authentication and gain administrative access by setting the tlGuestBook_login cookie to admin.

Vulnerability class: Broken Authentication

Published 2008-11-13 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.026 (84.5th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: -0.000

Affected products

Easy-Script Tlguesbook — versions 1.2

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.exploit-db.com/exploits/6860 (exploit)
www.securityfocus.com/bid/31958 (Exploit, vdb-entry)
securityreason.com/securityalert/4585 (third-party-advisory)