ExtCalendar 1.0 calendar.php cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in ExtCalendar 1.0. Affected by this issue is some unknown functionality of the file calendar.php. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2006-1336. The attack may be initiated remotely. In addition, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in ExtCalendar 1.0 (Calendar Software). It has been classified as problematic. This affects some unknown functionality of the file calendar.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on integrity. The summary by CVE is:

Cross-site scripting vulnerability in calendar.php in ExtCalendar 1.0 and possibly other versions before 2.0 allows remote attackers to inject arbitrary web script or HTML via the (1) year, (2) month, (3) next, and (4) prev parameters.

The weakness was presented 03/19/2006 by Soot (Website). It is possible to read the advisory at vupen.com. This vulnerability is uniquely identified as CVE-2006-1336 since 03/20/2006. The exploitability is told to be easy. 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 and a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

After even before and not, there has been an exploit disclosed. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:calendar.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (27443), SecurityFocus (BID 17146†), OSVDB (23969†) and Secunia (SA19321†). 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: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

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-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ExtCalendar 1.0

Timelineinfo

03/18/2006 🔍
03/19/2006 +1 days 🔍
03/19/2006 +0 days 🔍
03/19/2006 +0 days 🔍
03/20/2006 +0 days 🔍
03/20/2006 +0 days 🔍
03/21/2006 +1 days 🔍
03/12/2015 +3278 days 🔍
10/18/2025 +3873 days 🔍

Sourcesinfo

Advisory: vupen.com⛔
Researcher: Soot
Status: Confirmed

CVE: CVE-2006-1336 (🔍)
GCVE (CVE): GCVE-0-2006-1336
GCVE (VulDB): GCVE-100-29283
X-Force: 25350
SecurityFocus: 17146 - ExtCalendar Cross-Site Scripting Vulnerabilities
Secunia: 19321 - ExtCalendar Cross-Site Scripting and Script Insertion vulnerabilities, Moderately Critical
OSVDB: 23969 - ExtCalendar calendar.php Multiple Parameter XSS
Vupen: ADV-2006-1012

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/12/2015 12:19
Updated: 10/18/2025 18:28
Changes: 03/12/2015 12:19 (56), 08/31/2017 23:01 (7), 07/08/2021 13:28 (3), 10/18/2025 18:28 (19)
Complete: 🔍
Cache ID: 216::103

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

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