Vulnerability Description
The Calendar_plugin WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of `$_SERVER['PHP_SELF']` in the ~/calendar.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Calendar Plugin Project | Calendar Plugin | <= 1.0 |
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/calendar-plugin/trunk/calendar.php#L8ExploitThird Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34667ExploitThird Party Advisory
- https://plugins.trac.wordpress.org/browser/calendar-plugin/trunk/calendar.php#L8ExploitThird Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34667ExploitThird Party Advisory
FAQ
What is CVE-2021-34667?
CVE-2021-34667 is a vulnerability with a CVSS score of 6.1 (MEDIUM). The Calendar_plugin WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of `$_SERVER['PHP_SELF']` in the ~/calendar.php file which allows attackers to inject arbitrary web ...
How severe is CVE-2021-34667?
CVE-2021-34667 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-34667?
Check the references section above for vendor advisories and patch information. Affected products include: Calendar Plugin Project Calendar Plugin.