Vulnerability · Published Sep 20, 2021 · Assigned by WPScan
CVE-2021-24604Availability Calendar < 1.2.2 - Authenticated Stored Cross-Site Scripting
Medium 4.8
In plain English
A medium-severity cross-site scripting in Availability 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)4.8Medium
Exploit odds (30 days)0.6%top 50.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The Availability Calendar WordPress plugin before 1.2.2 does not sanitise or escape its Category Names before outputting them in page/post where the associated shortcode is embed, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Availability Calendar | 1.2.2 – before 1.2.2 |
Weakness: CWE-79