b3log Symphony 2.2.0 /article 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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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in b3log Symphony 2.2.0. It has been classified as problematic. This affects an unknown function of the file /article. This manipulation causes cross site scripting. This vulnerability is registered as CVE-2017-16956. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in b3log Symphony 2.2.0 and classified as problematic. Affected by this vulnerability is an unknown code block of the file /article. The manipulation with an unknown input 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:

b3log Symphony (aka Sym) 2.2.0 allows an XSS attack by sending a private letter with a certain /article URI, and a second private letter with a modified title.

The bug was discovered 11/26/2017. The weakness was published 11/27/2017 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2017-16956 since 11/26/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.0
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-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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/26/2017 🔍
11/26/2017 +0 days 🔍
11/27/2017 +1 days 🔍
11/27/2017 +0 days 🔍
11/27/2017 +0 days 🔍
01/16/2023 +1876 days 🔍

Sourcesinfo

Product: github.com

Advisory: 509
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-16956 (🔍)
GCVE (CVE): GCVE-0-2017-16956
GCVE (VulDB): GCVE-100-109975

Entryinfo

Created: 11/27/2017 16:21
Updated: 01/16/2023 12:01
Changes: 11/27/2017 16:21 (56), 02/01/2020 08:23 (2), 01/16/2023 12:01 (4)
Complete: 🔍
Cache ID: 216::103

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