Contributor-level stored XSS via unescaped shortcode attribute
Published Jan 16, 2023 · Updated Apr 4, 2025
Stored XSS in W3 Eden, Inc. WordPress Download Manager before 3.2.62 allows remote authenticated users to run script in administrators' browsers. The wpdm_modal_login_form shortcode returns its class attribute to page markup without validation or output escaping, allowing crafted attribute text to inject an event handler. Contributor access and the enabled modal login form are required, and exploitation occurs when a logged-in administrator loads the affected page.
Summary
What happened
Stored XSS in W3 Eden, Inc. WordPress Download Manager before 3.2.62 allows remote authenticated users to run script in administrators' browsers. The wpdm_modal_login_form shortcode returns its class attribute to page markup without validation or output escaping, allowing crafted attribute text to inject an event handler. Contributor access and the enabled modal login form are required, and exploitation occurs when a logged-in administrator loads the affected page.
The record
- CVE
- CVE-2022-4476
- Published
- Jan 16, 2023
- Updated
- Apr 4, 2025
- Vendor
- W3 Eden, Inc.
- Product
- WordPress Download Manager
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 16, 2023CVE publishedPublication date reported by the CVE source.
- Apr 4, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <3.2.62
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- wpdm_modal_login_form class-attribute proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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