Administrator-level object injection via PHAR path handling
Published Sep 6, 2022 · Updated Apr 8, 2026
PHAR deserialization in WPvivid — Backup, Migration & Staging 0.9.74 and earlier allows remote authenticated users to invoke PHP objects. The staging handler accepts the path parameter as a filesystem path without rejecting the phar:// scheme, causing PHP to deserialize metadata from an attacker-uploaded archive. Administrator access, a successfully uploaded serialized file, and a usable POP chain are required; resulting object methods perform actions permitted by that chain.
Summary
What happened
PHAR deserialization in WPvivid — Backup, Migration & Staging 0.9.74 and earlier allows remote authenticated users to invoke PHP objects. The staging handler accepts the path parameter as a filesystem path without rejecting the phar:// scheme, causing PHP to deserialize metadata from an attacker-uploaded archive. Administrator access, a successfully uploaded serialized file, and a usable POP chain are required; resulting object methods perform actions permitted by that chain.
The record
- CVE
- CVE-2022-2442
- Published
- Sep 6, 2022
- Updated
- Apr 8, 2026
- Vendor
- WPvivid Plugins
- Product
- WPvivid — Backup, Migration & Staging
- Classifications
- CWE-502
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Sep 6, 2022CVE 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 <=0.9.74
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
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Your stack
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