Blind outbound requests via unvalidated image URL
Published Aug 10, 2026 · Updated Aug 10, 2026
Server-side request forgery in ThimPress LearnPress before 4.4.4 allows remote authenticated users to trigger blind outbound requests. The openai_apply_image_feature handler passes its image-url value to a server-side fetch before validating the response path or file type, so an attacker-controlled host receives the request. Exploitation requires an Instructor-owned course, the AI integration enabled with an API key, and a valid session; the fetched body is not returned, limiting disclosure to blind request effects and timing.
Summary
What happened
Server-side request forgery in ThimPress LearnPress before 4.4.4 allows remote authenticated users to trigger blind outbound requests. The openai_apply_image_feature handler passes its image-url value to a server-side fetch before validating the response path or file type, so an attacker-controlled host receives the request. Exploitation requires an Instructor-owned course, the AI integration enabled with an API key, and a valid session; the fetched body is not returned, limiting disclosure to blind request effects and timing.
The record
- CVE
- CVE-2026-12971
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Vendor
- Overdrive Eletrônica
- Product
- LearnPress
- Classifications
- CWE-918, T1090
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 10, 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 <4.4.4
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.
Public exploit references
- WPScan Instructor-role blind SSRF proof of conceptfunctional · validated
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Technologies
Your stack
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Your stack
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