OWASP AntiSamy up to 1.5.7 HTML5 Entities javascript: URL cross site scripting

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability has been found in OWASP AntiSamy up to 1.5.7 and classified as problematic. This vulnerability affects an unknown functionality of the component HTML5 Entities Handler. The manipulation as part of a javascript: URL leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. As an impact it is known to affect integrity. An attacker might be able to inject arbitrary html and script code into the web site. This would alter the appearance and would make it possible to initiate further attacks against site visitors.

The bug was discovered 07/06/2017. The weakness was disclosed 09/25/2017 by Raj Veerappan (GitHub Repository). The advisory is available at github.com. This vulnerability was named CVE-2017-14735 since 09/25/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 81 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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105656). The entries 90449, 91385, 91680 and 91681 are pretty similar.

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VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Cross site scripting
CWE: CWE-79
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Countermeasuresinfoedit

Recommended: no mitigation known
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Timelineinfoedit

07/06/2017 🔍
09/25/2017 +81 days 🔍
09/25/2017 +0 days 🔍
09/25/2017 +0 days 🔍
09/25/2017 +0 days 🔍
09/26/2017 +1 days 🔍
01/14/2021 +1206 days 🔍

Sourcesinfoedit

Advisory: github.com
Researcher: Raj Veerappan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14735 (🔍)
SecurityFocus: 105656 - OWASP AntiSamy CVE-2017-14735 Cross Site Scripting Vulnerability

See also: 🔍

Entryinfoedit

Created: 09/26/2017 09:33 AM
Updated: 01/14/2021 12:55 PM
Changes: (2) advisory_person_name vulnerability_cvss2_nvd_basescore
Complete: 🔍

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