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CVE-2006-3203

25
FAUCET Score

CVE-2006-3203 describes a critical vulnerability in Ultimate PHP Board (UPB) versions 1.9.6 and earlier, where a default administrator account with a known password is included upon installation. This flaw allows unauthenticated remote attackers to easily gain full administrative privileges, leading to complete compromise of the affected system (CVSS 10.0). Despite its high severity and ease of exploitation, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.8CPE matchmatch criteria
cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.8:*:*:*:*:*:*:*
1.8.2CPE matchmatch criteria
cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.8.2:*:*:*:*:*:*:*
1.9CPE matchmatch criteria
cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.9:*:*:*:*:*:*:*
1.9.6CPE matchmatch criteria
cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.9.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.73%
Probability of exploitation in next 30 days
EPSS Percentile
84.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0273 is in the 73rd percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityreason.com / securityalert/1138
Exploit
kliconsulting.com / users/mbrooks/UPB_0-day.txt
ExploitPatchURL Repurposed
securityfocus.com / archive/1/437875/100/0/threaded