Subscriber-level object injection via unchecked AJAX action
Published Mar 15, 2025 · Updated Apr 8, 2026
Missing authorization in StylemixThemes uListing 2.2.0 and earlier allows remote authenticated users to alter post metadata and inject PHP objects. The stm_listing_ajax handler omits a capability check before accepting post-meta updates and passes attacker-controlled serialized data to PHP deserialization. Subscriber access is sufficient; object exploitation also requires a usable gadget chain, while arbitrary metadata changes directly compromise site content or behavior.
Summary
What happened
Missing authorization in StylemixThemes uListing 2.2.0 and earlier allows remote authenticated users to alter post metadata and inject PHP objects. The stm_listing_ajax handler omits a capability check before accepting post-meta updates and passes attacker-controlled serialized data to PHP deserialization. Subscriber access is sufficient; object exploitation also requires a usable gadget chain, while arbitrary metadata changes directly compromise site content or behavior.
The record
- CVE
- CVE-2025-1657
- Published
- Mar 15, 2025
- Updated
- Apr 8, 2026
- Vendor
- StylemixThemes
- Product
- uListing
- Classifications
- CWE-862, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 15, 2025CVE 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?
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- Affected versionversion=0 <=2.2.0
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
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Public exploit references
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Technologies
Your stack
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Your stack
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