HIGH
CVE-2016-4834
CWE-264Published: August 1, 2016· Updated: Jun 17, 2026
8.1
CVSS v3.1
Official Description
modules/Users/actions/Save.php in Vtiger CRM 6.4.0 and earlier does not properly restrict user-save actions, which allows remote authenticated users to create or modify user accounts via unspecified vectors.
Technical Analysis
CVE-2016-4834 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected Vendors & Products
vtiger1 product(s)
vtiger crm
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
http://code.vtiger.com/vtiger/vtigercrm/commit/7cdf9941197b4aa58114eafce3ce88fb418eb68cIssue Tracking · Patch
→
http://jvn.jp/en/jp/JVN01956993/index.htmlThird Party Advisory · VDB Entry
→
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000126Third Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/92076Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1036485Third Party Advisory · VDB Entry
→
http://code.vtiger.com/vtiger/vtigercrm/commit/7cdf9941197b4aa58114eafce3ce88fb418eb68cIssue Tracking · Patch
→
http://jvn.jp/en/jp/JVN01956993/index.htmlThird Party Advisory · VDB Entry
→
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000126Third Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/92076Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1036485Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2016-4834
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-264
CISA KEVNo
Affected1 vendor(s)
PublishedAug 1, 2016
Related CVEs (CWE-264)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-4834 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.