Webcalendar up to 1.2.7 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 marked as problematic has been reported in Webcalendar up to 1.2.7. This impacts an unknown function. The manipulation leads to cross site scripting. This vulnerability is documented as CVE-2017-10840. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Webcalendar up to 1.2.7 (Calendar Software). This issue affects an unknown code. The manipulation with an unknown input leads to a cross site scripting vulnerability. 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:

Cross-site scripting vulnerability in WebCalendar 1.2.7 and earlier allows an attacker to inject arbitrary web script or HTML via unspecified vectors.

The bug was discovered 08/24/2017. The weakness was released 08/29/2017 (Website). It is possible to read the advisory at jvn.jp. The identification of this vulnerability is CVE-2017-10840 since 07/04/2017. 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. The technical details are unknown and an exploit is not publicly available. 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 4 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103905 (Fedora 26 : WebCalendar (2017-c9abeb3158)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276943 (Fedora Security Update for WebCalendar (FEDORA-2017-26a53ccbdf)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (103905). Entry connected to this vulnerability is available at VDB-105852. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103905
Nessus Name: Fedora 26 : WebCalendar (2017-c9abeb3158)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for WebCalendar FEDORA-2017-c9abeb3158
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: github.com

Timelineinfo

07/04/2017 🔍
08/24/2017 +51 days 🔍
08/28/2017 +4 days 🔍
08/29/2017 +1 days 🔍
08/29/2017 +0 days 🔍
10/09/2017 +41 days 🔍
10/18/2017 +9 days 🔍
12/27/2022 +1896 days 🔍

Sourcesinfo

Advisory: FEDORA-2017-c9abeb3158
Status: Not defined

CVE: CVE-2017-10840 (🔍)
GCVE (CVE): GCVE-0-2017-10840
GCVE (VulDB): GCVE-100-105851
See also: 🔍

Entryinfo

Created: 08/29/2017 11:45
Updated: 12/27/2022 07:02
Changes: 08/29/2017 11:45 (65), 11/11/2019 08:46 (9), 12/27/2022 06:53 (4), 12/27/2022 07:02 (1)
Complete: 🔍
Cache ID: 216::103

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

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