Synacor Zimbra Collaboration up to 8.6.x cross site scripting

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Synacor Zimbra Collaboration up to 8.6.x and classified as problematic. The affected element is an unknown function. Executing a manipulation can lead to cross site scripting. This vulnerability is handled as CVE-2016-4019. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Synacor Zimbra Collaboration up to 8.6.x (Groupware Software) and classified as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. As an impact it is known to affect integrity.

The weakness was released 04/12/2016 as Bug 104477 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.zimbra.com. The public release was coordinated with the vendor. This vulnerability was named CVE-2016-4019 since 04/12/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 8.7.0 eliminates this vulnerability.

Entry connected to this vulnerability is available at VDB-95477. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Groupware Software

Vendor

Synacor

Name

Zimbra Collaboration

Version

License

free

Website

Vendor: https://synacor.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Zimbra Collaboration 8.7.0

Timelineinfo

04/12/2016 🔍
04/12/2016 +0 days 🔍
08/30/2016 +140 days 🔍
05/13/2026 +3543 days 🔍

Sourcesinfo

Vendor: synacor.com

Advisory: Bug 104477
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2016-4019 (🔍)
GCVE (CVE): GCVE-0-2016-4019
GCVE (VulDB): GCVE-100-90976
SecurityFocus: 95922

See also: 🔍

Entryinfo

Created: 08/30/2016 09:19
Updated: 05/13/2026 18:52
Changes: 08/30/2016 09:19 (43), 05/10/2018 10:55 (3), 09/14/2022 12:22 (2), 05/13/2026 18:52 (33)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.