CVE-2011-4559

high

Published 2011-11-28 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.5

Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-36208 webapps php verified

Aung Khant · 2011-10-15

vTiger CRM 5.2 - 'onlyforuser' SQL Injection

Source code queued for fetch — refresh in a moment.

Application impact

Vendor	Product	Versions
vtiger	vtiger_crm	`{"endIncluding":"5.2.1"}`
vtiger	vtiger_crm	`1.0`
vtiger	vtiger_crm	`2.0`
vtiger	vtiger_crm	`2.0.1`
vtiger	vtiger_crm	`2.1`
vtiger	vtiger_crm	`3.0`
vtiger	vtiger_crm	`3.2`
vtiger	vtiger_crm	`4.0`
vtiger	vtiger_crm	`4.0.1`
vtiger	vtiger_crm	`4.2`
vtiger	vtiger_crm	`4.2.4`
vtiger	vtiger_crm	`5.0.2`
vtiger	vtiger_crm	`5.0.3`
vtiger	vtiger_crm	`5.0.4`
vtiger	vtiger_crm	`5.1.0`
vtiger	vtiger_crm	`5.2.0`

References

CWEs

CWE-89

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.