CVE-2025-9540 describes a Stored Cross-Site Scripting (XSS) vulnerability in the Markup Markdown WordPress plugin prior to version 3.20.10. This flaw allows authenticated users with contributor-level privileges or higher to inject malicious JavaScript into links, which can then execute in a victim's browser. The vulnerability is rated Medium severity (CVSS 4.7) due to its network attack vector and low impact on confidentiality, integrity, and availability, but requires high privileges. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Unknown | Markup Markdown | >= 0, < 3.20.10CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.