Vulnerability · Published Nov 29, 2021 · Assigned by WPScan
CVE-2021-24927My Calendar < 3.2.18 - Subscriber+ Reflected Cross-Site Scripting
Medium 5.4
In plain English
A medium-severity cross-site scripting in My Calendar from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.6%top 50.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The My Calendar WordPress plugin before 3.2.18 does not sanitise and escape the callback parameter of the mc_post_lookup AJAX action (available to any authenticated user) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | My Calendar | 3.2.18 – before 3.2.18 |
Weakness: CWE-79