DotClear up to 2.8.1 Comment admin/comments.php Author 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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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in DotClear up to 2.8.1. It has been rated as problematic. This affects an unknown part of the file admin/comments.php of the component Comment Handler. Performing a manipulation of the argument Author results in cross site scripting. This vulnerability is reported as CVE-2015-8831. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in DotClear up to 2.8.1 (Blog Software). It has been classified as problematic. This affects an unknown function of the file admin/comments.php of the component Comment Handler. The manipulation of the argument author with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in admin/comments.php in Dotclear before 2.8.2 allows remote attackers to inject arbitrary web script or HTML via the author name in a comment.

The bug was discovered 03/05/2016. The weakness was disclosed 02/09/2017 by Tim Coen (Website). It is possible to read the advisory at dotclear.org. This vulnerability is uniquely identified as CVE-2015-8831 since 03/06/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 341 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:admin/comments.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.8.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96377†). The entry VDB-96748 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

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: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: DotClear 2.8.2

Timelineinfo

03/05/2016 🔍
03/06/2016 +1 days 🔍
02/09/2017 +340 days 🔍
02/09/2017 +0 days 🔍
02/09/2017 +0 days 🔍
02/09/2017 +0 days 🔍
11/12/2022 +2102 days 🔍

Sourcesinfo

Advisory: 134353
Researcher: Tim Coen
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8831 (🔍)
GCVE (CVE): GCVE-0-2015-8831
GCVE (VulDB): GCVE-100-96747
SecurityFocus: 96377 - Dotclear 'admin/comments.php' Cross Site Scripting Vulnerability
OSVDB: - CVE-2015-8831 - Dotclear - Cross-Site Scripting Issue

See also: 🔍

Entryinfo

Created: 02/09/2017 19:31
Updated: 11/12/2022 11:02
Changes: 02/09/2017 19:31 (62), 08/12/2020 17:07 (7), 11/12/2022 11:02 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

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