Synology Calendar up to 2.3.0 Event Editor Title 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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Synology Calendar up to 2.3.0. The impacted element is an unknown function of the component Event Editor. This manipulation of the argument Title as part of Parameter causes cross site scripting. The identification of this vulnerability is CVE-2019-11825. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Synology Calendar up to 2.3.0 (Calendar Software). Affected by this vulnerability is an unknown functionality of the component Event Editor. The manipulation of the argument title as part of a Parameter leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in Event Editor in Synology Calendar before 2.3.0-0615 allows remote attackers to inject arbitrary web script or HTML via the title parameter.

The weakness was shared 06/30/2019 (Website). The advisory is shared at synology.com. This vulnerability is known as CVE-2019-11825 since 05/08/2019. The attack can be launched remotely. The successful exploitation needs a single authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 2.3.0-0615 eliminates this vulnerability.

The entry VDB-137093 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Calendar Software

Vendor

Synology

Name

Calendar

Version

License

commercial

Website

Vendor: https://www.synology.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Synology Inc.): 🔍

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-79 / CWE-94 / CWE-74
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: Calendar 2.3.0-0615

Timelineinfo

05/08/2019 🔍
06/30/2019 +53 days 🔍
06/30/2019 +0 days 🔍
10/09/2023 +1562 days 🔍

Sourcesinfo

Vendor: synology.com

Advisory: SA_19_04
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-11825 (🔍)
GCVE (CVE): GCVE-0-2019-11825
GCVE (VulDB): GCVE-100-137089
See also: 🔍

Entryinfo

Created: 06/30/2019 21:44
Updated: 10/09/2023 14:27
Changes: 06/30/2019 21:44 (60), 06/29/2020 10:00 (1), 10/09/2023 14:24 (4), 10/09/2023 14:27 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.