Stored XSS via unescaped body-class post metadata
Published Oct 21, 2023 · Updated Apr 8, 2026
Stored XSS in Anil Ankola Add Custom Body Class 1.4.1 and earlier allows remote authenticated users to inject scripts via post metadata. The save callback stores the add_custom_body_class POST value without sanitization, and the body_class filter returns it without output escaping. Contributor-level access is required; the script executes in the browser of each user who visits the affected post or page.
Summary
What happened
Stored XSS in Anil Ankola Add Custom Body Class 1.4.1 and earlier allows remote authenticated users to inject scripts via post metadata. The save callback stores the add_custom_body_class POST value without sanitization, and the body_class filter returns it without output escaping. Contributor-level access is required; the script executes in the browser of each user who visits the affected post or page.
The record
- CVE
- CVE-2023-5205
- Published
- Oct 21, 2023
- Updated
- Apr 8, 2026
- Vendor
- Anil Ankola
- Product
- Add Custom Body Class
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 21, 2023CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record 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?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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