CVE-2021-24927
Last modified
CVE-2021-24927 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.60% chance of exploitation in the next 30 days.
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| My Calendar Project | My Calendar | < 3.2.18 |
References
- https://wpscan.com/vulnerability/86f3acc7-8902-4215-bd75-6105d601524eExploit, Third Party Advisory
- https://wpscan.com/vulnerability/86f3acc7-8902-4215-bd75-6105d601524eExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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