Unauthenticated object injection via unsafe deserialization
Published May 29, 2025 · Updated Apr 28, 2026
PHP object injection in ThimPress Course Builder before 3.6.6 allows remote attackers to inject objects through untrusted serialized input. Patchstack has not published the affected function, request parameter, or exact deserialization path that accepts the serialized data. Exploitation requires a usable PHP POP chain from another installed theme or plugin; the chain determines whether data access, file deletion, or code execution follows.
Summary
What happened
PHP object injection in ThimPress Course Builder before 3.6.6 allows remote attackers to inject objects through untrusted serialized input. Patchstack has not published the affected function, request parameter, or exact deserialization path that accepts the serialized data. Exploitation requires a usable PHP POP chain from another installed theme or plugin; the chain determines whether data access, file deletion, or code execution follows.
The record
- CVE
- CVE-2025-48336
- Published
- May 29, 2025
- Updated
- Apr 28, 2026
- Vendor
- Overdrive Eletrônica
- Product
- Course Builder
- Classifications
- CWE-502, CAPEC-586, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 29, 2025CVE 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=0 <=3.6.6 changes=[{"at":"3.6.6","status":"unaffected"}]
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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