The CAPTCHA implementation in (1) Pligg 9.9.5 and possibly (2) Francisco Burzi PHP-Nuke 8.1 provides a critical random number (the ts_rando…

Published 18 y ago 2008-08-10 · modified 4 mo ago 2026-06-16 · JSON

CVSS

5.0

v2.0 · NVD

CISA KEV

not known exploited

EPSS

1.9%

percentile 80%

Public exploits

Exploit-DB

The CAPTCHA implementation in (1) Pligg 9.9.5 and possibly (2) Francisco Burzi PHP-Nuke 8.1 provides a critical random number (the ts_random value) within the URL in the SRC attribute of an IMG element, which allows remote attackers to pass the CAPTCHA test via a calculation that combines this value with the current date and the HTTP User-Agent string.

Exploit prediction (EPSS)

1.95% probability of exploitation in the next 30 days, higher than 80% of all scored CVEs.

Exploits and detections

EDB-32142 Pligg CMS 9.9.5 - 'CAPTCHA' Registration Automation Security Bypass · webapps · 2008-08-02

CVSS scores

Assigned by	Version	Score	Vector
NVD	2.0	5.0	`AV:N/AC:L/Au:N/C:N/I:P/A:N`

Classification

Weakness

CWE-189 Numeric Errors
CWE-264 Permissions, Privileges, and Access Controls

References

exchange.xforce.ibmcloud.com /vulnerabilities/44192 · vdb-entry, x_refsource_XF, x_transferred
rooksecurity.com /blog/?p=17 · x_refsource_MISC, x_transferred
securityfocus.com /bid/30518 · vdb-entry, x_refsource_BID, x_transferred

Sources

CVE List: CVE-2008-3573
NVD: CVE-2008-3573

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.