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Fencer Intel
high 7.5

CVE-2011-4559 json

SQL injection vulnerability in the Calendar module in vTiger CRM 5.2.1 and earlier allows remote attackers to execute arbitrary SQL command…

published 2011-11-28 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4485

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
1
Exploit-DB

Summary

SQL injection vulnerability in the Calendar module in vTiger CRM 5.2.1 and earlier allows remote attackers to execute arbitrary SQL commands via the onlyforuser parameter in an index action to index.php.

Timeline

  1. First public exploit (EDB-36208)
  2. Published

Exploit prediction

1.31% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-36208 vTiger CRM 5.2 - 'onlyforuser' SQL Injection webapps, 2011-10-15
  • seclists.org http://seclists.org/fulldisclosure/2011/Oct/224 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/49948 referenced PoC, tagged "exploit" by a source, unverified
  • yehg.net http://yehg.net/lab/pr0js/advisories/%5BvTiger_5.2.1%5D_blind_sqlin referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.