Authenticated PHP object injection via unsafe deserialization
Published Oct 22, 2025 · Updated Oct 22, 2025
Deserialization of untrusted data in Boldermail 2.4.0 and earlier allows remote authenticated users to inject PHP objects. The published CNA record does not identify the vulnerable function, input field, or request path that passes attacker-controlled serialized data into PHP deserialization. Low-privilege WordPress access is required, while the record does not identify a gadget chain or any concrete post-injection action.
Summary
What happened
Deserialization of untrusted data in Boldermail 2.4.0 and earlier allows remote authenticated users to inject PHP objects. The published CNA record does not identify the vulnerable function, input field, or request path that passes attacker-controlled serialized data into PHP deserialization. Low-privilege WordPress access is required, while the record does not identify a gadget chain or any concrete post-injection action.
The record
- CVE
- CVE-2025-52740
- Published
- Oct 22, 2025
- Updated
- Oct 22, 2025
- Vendor
- Boldermail
- Product
- Boldermail
- Classifications
- CWE-502, CAPEC-586
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 22, 2025CVE publishedPublication date reported by the CVE source.
- Oct 22, 2025Record 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=n/a <=<= 2.4.0
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
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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