Unauthenticated stored XSS via unsanitized post content
Published Aug 15, 2023 · Updated Apr 8, 2026
Stored XSS in Plugin Planet User Submitted Posts 20230809 and earlier allows remote attackers to inject scripts through submitted post content. The user-submitted-content form parameter is stored without sufficient input sanitization and later rendered without adequate output escaping. No account is required when the front-end submission form accepts visitors; the script runs in the browser of anyone who opens the injected page.
Summary
What happened
Stored XSS in Plugin Planet User Submitted Posts 20230809 and earlier allows remote attackers to inject scripts through submitted post content. The user-submitted-content form parameter is stored without sufficient input sanitization and later rendered without adequate output escaping. No account is required when the front-end submission form accepts visitors; the script runs in the browser of anyone who opens the injected page.
The record
- CVE
- CVE-2023-4308
- Published
- Aug 15, 2023
- Updated
- Apr 8, 2026
- Vendor
- Plugin Planet
- Product
- User Submitted Posts
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 15, 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 <=20230809
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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