Vulnerability · Published Sep 22, 2025 · Assigned by WPScan
CVE-2025-9540Markup Markdown < 3.20.10 - Contributor+ Stored XSS
Medium 4.7
In plain English
A medium-severity security flaw in Markup Markdown from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.2%top 86.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
The Markup Markdown WordPress plugin before 3.20.10 allows links to contain JavaScript which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Markup Markdown | 0 – before 3.20.10 |
References
- https://wpscan.com/vulnerability/79e606df-50a0-4639-b2d9-4a77111fd729/ exploit, vdb-entry, technical-description