Travel-post metadata modification via missing nonce validation
Published Jul 1, 2023 · Updated Apr 8, 2026
Cross-site request forgery in WP Travel 4.4.6 and earlier allows remote attackers to alter travel-post metadata through a forged request. The save_meta_data() function checks wp_travel_save_data only when that field is present, so an omitted field bypasses nonce validation before supplied metadata is saved. Exploitation requires an authenticated administrator to act on attacker-controlled content, and the resulting request changes metadata on a travel post.
Summary
What happened
Cross-site request forgery in WP Travel 4.4.6 and earlier allows remote attackers to alter travel-post metadata through a forged request. The save_meta_data() function checks wp_travel_save_data only when that field is present, so an omitted field bypasses nonce validation before supplied metadata is saved. Exploitation requires an authenticated administrator to act on attacker-controlled content, and the resulting request changes metadata on a travel post.
The record
- CVE
- CVE-2021-4389
- Published
- Jul 1, 2023
- Updated
- Apr 8, 2026
- Vendor
- WP Travel
- Product
- WP Travel
- Classifications
- CWE-352, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 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 <=4.4.6
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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