Synacor Zimbra Collaboration up to 8.6.x cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Synacor Zimbra Collaboration up to 8.6.x and classified as problematic. Impacted is an unknown function. Performing a manipulation results in cross site scripting. This vulnerability is known as CVE-2016-3999. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Synacor Zimbra Collaboration up to 8.6.x (Groupware Software). This affects an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity.

The weakness was published 04/12/2016 as Bug 104552 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.zimbra.com. The public release has been coordinated with Synacor. This vulnerability is uniquely identified as CVE-2016-3999 since 04/12/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 8.7.0 eliminates this vulnerability.

Similar entries are available at VDB-90976, VDB-90977, VDB-90978 and VDB-90979. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

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

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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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 104552
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2016-3999 (🔍)
GCVE (CVE): GCVE-0-2016-3999
GCVE (VulDB): GCVE-100-90975
SecurityFocus: 95921

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 12:14 (2), 05/13/2026 18:52 (33)
Complete: 🔍
Cache ID: 216::103

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