Authenticated SSRF via unchecked crop image URL
Published Apr 11, 2026 · Updated Apr 11, 2026
Blind SSRF in UsersWP 1.2.58 and earlier allows remote authenticated users to trigger outbound requests through image cropping. The process_image_crop() method accepts the uwp_crop URL after sanitizing it and checking its extension, then passes it to URL-aware PHP image functions without requiring a local uploads origin. Subscriber-level access is required, and the blind requests enable internal network scanning and access attempts against services reachable from the WordPress server.
Summary
What happened
Blind SSRF in UsersWP 1.2.58 and earlier allows remote authenticated users to trigger outbound requests through image cropping. The process_image_crop() method accepts the uwp_crop URL after sanitizing it and checking its extension, then passes it to URL-aware PHP image functions without requiring a local uploads origin. Subscriber-level access is required, and the blind requests enable internal network scanning and access attempts against services reachable from the WordPress server.
The record
- CVE
- CVE-2026-4979
- Published
- Apr 11, 2026
- Updated
- Apr 11, 2026
- Vendor
- AyeCode Ltd
- Product
- UsersWP
- Classifications
- CWE-918, T1046
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 11, 2026CVE publishedPublication date reported by the CVE source.
- Apr 11, 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?
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- Affected versionversion=0 <=1.2.58
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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