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.

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)

Published 2022-02-14 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.023 (82.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

10web Spidercalendar
Spidercalendar — versions 1.5.65

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/15be2d2b-baa3-4845-82cf-3c351c695b47 (Exploit, Third Party Advisory)

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.