Vulnerability · Published Jun 10, 2026 · Assigned by VulnCheck
CVE-2026-53740Yoast Duplicate Post through 4.6 Stored Cross-Site Scripting via Scheduled Republish Notice
Medium 5.4
In plain English
A medium-severity cross-site scripting in Yoast Duplicate Post from Yoast. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.1%top 96.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Yoast Duplicate Post through 4.6 inserts an unescaped post title and permalink into the Classic Editor scheduled republish notice. Attackers can schedule a republish copy with a crafted title to execute script when an administrator views the resulting notice.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Yoast | Yoast Duplicate Post | 0 – through 4.6 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N