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CVE-2002-1821

14
FAUCET Score

CVE-2002-1821 describes a privilege escalation vulnerability in Ultimate PHP Board (UPB) versions 1.0 and 1.0b. Authenticated users can exploit this by directly accessing administrative PHP scripts (e.g., admin_members.php), enabling them to perform unauthorized actions and gain elevated privileges. With a CVSS score of 4.6, this vulnerability is of moderate severity, requiring local access and low attack complexity to achieve partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.0:*:*:*:*:*:*:*
1.0_betaCPE matchmatch criteria
cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.0_beta:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 83rd percentile among its peer group of 3,050 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

securitytracker.com / id
securityfocus.com / bid/5666