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CVE-2012-3840

25
FAUCET Score

CVE-2012-3840 describes multiple cross-site scripting (XSS) vulnerabilities in MyClientBase version 0.12, specifically within the index.php/users/form/user_id component. Attackers can inject arbitrary web script or HTML through the first_name or last_name parameters. This vulnerability has a CVSS score of 4.3, indicating a medium severity due to its network-based attack vector and medium access complexity, potentially leading to partial integrity impact. While there is an ExploitDB entry (EDB-18814) detailing multiple vulnerabilities, there is no evidence of active exploitation, Metasploit modules, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
0.12CPE matchmatch criteria
cpe:2.3:a:myclientbase:myclientbase:0.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.63%
Probability of exploitation in next 30 days
EPSS Percentile
73.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-18814 · May 1, 2012
This CVE's current EPSS score of 0.0163 is in the 50th percentile among its peer group of 19,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

secunia.com / advisories/48961
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/75299
exploit-db.com / exploits/18814
Exploit
securityfocus.com / bid/53311
Exploit