What’s Vulnerable › Vulnerabilities

CVE-2008-3573

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2008-08-10 · updated 2026-06-16
• Weakness: CWE-189

Description

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.

Affected products

• Php-Nuke: 8.1
• Pligg: 9.9.5

References

• http://www.rooksecurity.com/blog/?p=17
• http://www.securityfocus.com/bid/30518
• https://exchange.xforce.ibmcloud.com/vulnerabilities/44192
• http://www.rooksecurity.com/blog/?p=17
• http://www.securityfocus.com/bid/30518
• https://exchange.xforce.ibmcloud.com/vulnerabilities/44192

Get alerted when CVE-2008-3573 or the next vulnerability affects your stack