XSS in Jackdewey Events Listing Widget

CVE-2026-1252

The Events Listing Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Event URL' parameter in all versions up to, and including, 1.3.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-1252?
CVE-2026-1252 is a medium-severity vulnerability in Jackdewey Events Listing Widget, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-02-06.
How severe is CVE-2026-1252?
Medium severity. CVSS v3 base score is 6.4 out of 10.