OWASP AntiSamy up to 1.5.7 HTML5 Entities javascript: URL HTML injection

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in OWASP AntiSamy up to 1.5.7. This issue affects some unknown processing of the component HTML5 Entities Handler. Executing a manipulation as part of javascript: URL can lead to HTML injection. This vulnerability is tracked as CVE-2017-14735. The attack can be launched remotely. No exploit exists.

Detailsinfo

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 html injection 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. CVE summarizes:

OWASP AntiSamy through 1.5.7 allows XSS via HTML5 entities, as demonstrated by use of : to construct a javascript: URL.

The bug was discovered 07/06/2017. The weakness was disclosed 09/25/2017 (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. The vulnerability scanner Nessus provides a plugin with the ID 220727 (Linux Distros Unpatched Vulnerability : CVE-2017-14735), which helps to determine the existence of the flaw in a target environment.

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 databases at Tenable (220727) and SecurityFocus (BID 105656†). The entries VDB-90449, VDB-91385, VDB-91680 and VDB-91681 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

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: HTML injection
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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Nessus ID: 220727
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2017-14735

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

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 🔍
03/04/2025 +2716 days 🔍

Sourcesinfo

Advisory: 10
Researcher: Raj Veerappan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14735 (🔍)
GCVE (CVE): GCVE-0-2017-14735
GCVE (VulDB): GCVE-100-107122
SecurityFocus: 105656 - OWASP AntiSamy CVE-2017-14735 Cross Site Scripting Vulnerability

See also: 🔍

Entryinfo

Created: 09/26/2017 09:33
Updated: 03/04/2025 21:47
Changes: 09/26/2017 09:33 (59), 11/19/2019 15:47 (5), 01/14/2021 12:55 (2), 12/30/2022 09:30 (3), 03/04/2025 21:47 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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