XSS in 10web Spidercalendar

CVE-2022-0212

The SpiderCalendar WordPress plugin through 1.5.65 does not sanitise and escape the callback parameter before outputting it back in the page via the window AJAX action (available to both unauthenticated and authenticated users), leading to a Reflected Cross-Site Scripting issue.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.023 (81.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-0212?
CVE-2022-0212 is a medium-severity vulnerability in 10web Spidercalendar, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-02-14.
How severe is CVE-2022-0212?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2022-0212 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.