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Vulnerability record · CVE-2013-1421 · published 22 April 2014

CVE-2013-1421: Webcalendar project webcalendar cross-site scripting vulnerability

WWebcalendar Project · Webcalendar

Cross-site scripting (XSS) vulnerability in Craig Knudsen WebCalendar before 1.2.5, 1.2.6, and other versions before 1.2.7 allows remote attackers to inject arbitrary web script or HTML via the Category Name field to category.php.

4.3 CVSS 2.0 Medium EPSS 1.2% · top 32.1% CWE-79 · Cross-site scripting
4.3CVSS 2.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Cross-site scripting (XSS) vulnerability in Craig Knudsen WebCalendar before 1.2.5, 1.2.6, and other versions before 1.2.7 allows remote attackers to inject arbitrary web script or HTML via the Category Name field to category.php.

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/90669
http://securitymaverick.com/vulnerability-cve-2013-1421-webcalendar-1-2-5-1-2-6-category-name-persistent-xss/ Exploit
http://sourceforge.net/projects/webcalendar/files/webcalendar%201.2/1.2.7/ Patch
http://osvdb.org/90669
http://securitymaverick.com/vulnerability-cve-2013-1421-webcalendar-1-2-5-1-2-6-category-name-persistent-xss/ Exploit
http://sourceforge.net/projects/webcalendar/files/webcalendar%201.2/1.2.7/ Patch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2012-1495WebCalendar install/index.php pre-auth remote code executionWebCalendar before 1.2.5 passes the form_single_user_login parameter in install/index.php without adequate sanitisation, allowing injection that lead…EPSS 80%analysed8.8CVE-2012-1496Webcalendar project webcalendar injection vulnerabilityLocal file inclusion in WebCalendar before 1.2.5.EPSS 2.5%7.5CVE-2012-5385Webcalendar project webcalendar permissions and access controls vulnerabilityinstall/index.php in Craig Knudsen WebCalendar before 1.2.5 allows remote attackers to modify settings.php and possibly execute arbitrary code via ve…EPSS 2.2%6.1CVE-2024-22635Webcalendar project webcalendar cross-site scripting vulnerabilityWebCalendar v1.3.0 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the component /WebCalendarvqsmnseug2/edit_entry…EPSS 0.46%6.1CVE-2017-10840Webcalendar project webcalendar cross-site scripting vulnerabilityCross-site scripting vulnerability in WebCalendar 1.2.7 and earlier allows an attacker to inject arbitrary web script or HTML via unspecified vectors.EPSS 0.93%5.4CVE-2023-0289Webcalendar project webcalendar cross-site scripting vulnerabilityCross-site Scripting (XSS) - Stored in GitHub repository craigk5n/webcalendar prior to master.EPSS 0.53%5.3CVE-2013-1422Webcalendar project webcalendar observable discrepancy vulnerabilitywebcalendar before 1.2.7 shows the reason for a failed login (e.g., "no such user").EPSS 1.6%4.9CVE-2017-10841Webcalendar project webcalendar path traversal vulnerabilityDirectory traversal vulnerability in WebCalendar 1.2.7 and earlier allows authenticated attackers to read arbitrary files via unspecified vectors.EPSS 2.4%

Source: NIST National Vulnerability Database (record CVE-2013-1421), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.