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CVE-2011-4559

28
FAUCET Score

CVE-2011-4559 describes a SQL injection vulnerability within the Calendar module of vTiger CRM versions 5.2.1 and earlier, allowing remote attackers to execute arbitrary SQL commands. This vulnerability carries a CVSS score of 7.5, indicating high severity due to its network-based attack vector, low attack complexity, and potential for partial compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, exploit code is publicly available via ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2.1CPE matchmatch criteria
cpe:2.3:a:vtiger:vtiger_crm:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:vtiger:vtiger_crm:1.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:vtiger:vtiger_crm:2.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:vtiger:vtiger_crm:2.0.1:*:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:a:vtiger:vtiger_crm:2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-36208 · Oct 15, 2011
This CVE's current EPSS score of 0.0134 is in the 48th percentile among its peer group of 51,506 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

osvdb.org / 76138
seclists.org / fulldisclosure/2011/Oct/224
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/70344
securityfocus.com / archive/1/520006/100/0/threaded
securityfocus.com / bid/49948
Exploit
yehg.net / lab/pr0js/advisories/%5BvTiger_5.2.1%5D_blind_sqlin
Exploit