CVE-2008-3573 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 2% (pctl 80)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| EPSS | 1.95% — more likely to be exploited than 80% of all CVEs |
| Weakness | CWE-189 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2008-08-10 |
| Last modified | 2026-06-16 |
Affected (2)
| Vendor | Product |
|---|---|
| php-nuke | php-nuke |
| pligg | pligg |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Pligg CMS 9.9.5 - 'CAPTCHA' Registration Automation Security Bypass | 2008-08-02 |
References
→ the Explorer · watch your stack · NVD