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CVE-2012-4328

28
FAUCET Score

CVE-2012-4328 describes an unspecified vulnerability within the MAPI component of vBulletin Suite 4.1.2-4.1.12, vBulletin Forum 4.1.2-4.1.12, and the MAPI plugin 1.4.3 for vBulletin 3.x. This vulnerability carries a critical CVSS score of 10.0, indicating potential for complete compromise of confidentiality, integrity, and availability with low attack complexity and no authentication required. While the exact attack vectors and impact remain unknown, its high FAUCET Risk Score of 82/100 suggests significant risk. There is no evidence of active exploitation, nor are there public exploits available in Metasploit or ExploitDB, though it has received limited community discussion and media coverage, including a mention in a CSO Online article regarding a data breach.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.3CPE matchmatch criteria
cpe:2.3:a:vbulletin:mapi:1.4.3:*:*:*:*:*:*:*
4.1.2CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin_forum:4.1.2:*:*:*:*:*:*:*
4.1.12CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin_forum:4.1.12:*:*:*:*:*:*:*
4.1.2CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin_suite:4.1.2:*:*:*:*:*:*:*
4.1.12CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin_suite:4.1.12:*:*:*:*:*:*:*

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
2.46%
Probability of exploitation in next 30 days
EPSS Percentile
82.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0246 is in the 69th percentile among its peer group of 51,466 CVEs.

Social Chatter

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

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

osvdb.org / 81474
secunia.com / advisories/48917
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/75160
vbulletin.com / forum/showthread.php/400162-vBulletin-3-x-MAPI-Plugin-1-4-3-released-with-security-patch-04-23-2012
Vendor Advisory
vbulletin.com / forum/showthread.php/400164-vBulletin-Security-Patch-for-vBulletin-4-1-2-4-1-11-for-Suite-amp-Forum-04-23-2012
Vendor Advisory
vbulletin.com / forum/showthread.php/400165-vBulletin-Security-Patch-for-vBulletin-4-1-12-for-Suite-amp-Forum-04-23-2012
Vendor Advisory
securityfocus.com / bid/53226