Authenticated stored XSS via unsanitized metadata
Published Jun 15, 2022 · Updated Apr 28, 2026
Cross-site scripting in Micah Wood Promotion Slider 3.3.4 and earlier allows remote authenticated users to execute script via crafted post metadata. The save_meta_data function stores attacker-controlled post metadata without sufficient sanitization and later renders it without output escaping, creating persistent scripts in promotion content. A contributor or higher WordPress role must save the malicious metadata, and a victim must view the affected content; the impact is limited to script-driven data reads or writes available to that victim.
Summary
What happened
Cross-site scripting in Micah Wood Promotion Slider 3.3.4 and earlier allows remote authenticated users to execute script via crafted post metadata. The save_meta_data function stores attacker-controlled post metadata without sufficient sanitization and later renders it without output escaping, creating persistent scripts in promotion content. A contributor or higher WordPress role must save the malicious metadata, and a victim must view the affected content; the impact is limited to script-driven data reads or writes available to that victim.
The record
- CVE
- CVE-2022-29440
- Published
- Jun 15, 2022
- Updated
- Apr 28, 2026
- Vendor
- Micah Wood
- Product
- Promotion Slider
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 15, 2022CVE publishedPublication date reported by the CVE source.
- Apr 28, 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=<= 3.3.4 <=3.3.4
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.
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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