Xiuno BBS 4.0.4 Editor Stored cross site scripting

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 (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Xiuno BBS 4.0.4. Impacted is an unknown function of the component Committer. The manipulation leads to cross site scripting (Stored). This vulnerability is traded as CVE-2018-15559. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Xiuno BBS 4.0.4. It has been rated as problematic. This issue affects an unknown code of the component Editor. The manipulation with an unknown input leads to a cross site scripting vulnerability (Stored). Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

The editor in Xiuno BBS 4.0.4 allows stored XSS.

The bug was discovered 08/04/2018. The weakness was shared 08/20/2018 (Website). The advisory is shared at bbs.xiuno.com. The identification of this vulnerability is CVE-2018-15559 since 08/19/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 15 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.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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

Name: Stored
Class: Cross site scripting / Stored
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

08/04/2018 🔍
08/19/2018 +14 days 🔍
08/19/2018 +0 days 🔍
08/20/2018 +1 days 🔍
08/20/2018 +0 days 🔍
03/16/2020 +574 days 🔍

Sourcesinfo

Advisory: bbs.xiuno.com
Status: Not defined

CVE: CVE-2018-15559 (🔍)
GCVE (CVE): GCVE-0-2018-15559
GCVE (VulDB): GCVE-100-123029

Entryinfo

Created: 08/20/2018 08:31
Updated: 03/16/2020 19:12
Changes: 08/20/2018 08:31 (57), 03/16/2020 19:12 (1)
Complete: 🔍
Cache ID: 216::103

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