Stored XSS via unescaped shortcode style attribute
Published Nov 27, 2023 · Updated Jun 5, 2025
Stored XSS in D. Relton Medialist before 1.4.1 allows remote authenticated users to execute script through a crafted shortcode. The medialist shortcode inserts its attacker-controlled style attribute into generated page markup without validating or escaping it. Contributor access is required to store the shortcode in a post or page, and the script runs when another user views the published content.
Summary
What happened
Stored XSS in D. Relton Medialist before 1.4.1 allows remote authenticated users to execute script through a crafted shortcode. The medialist shortcode inserts its attacker-controlled style attribute into generated page markup without validating or escaping it. Contributor access is required to store the shortcode in a post or page, and the script runs when another user views the published content.
The record
- CVE
- CVE-2023-5942
- Published
- Nov 27, 2023
- Updated
- Jun 5, 2025
- Vendor
- D. Relton
- Product
- Medialist
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 27, 2023CVE publishedPublication date reported by the CVE source.
- Jun 5, 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 <1.4.1
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Medialist style-attribute stored-XSS shortcode payloadproof of concept · validated
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Technologies
Your stack
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Your stack
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