Unauthenticated code execution via PHAR stream deserialization
Published Jun 3, 2025 · Updated Jun 3, 2025
Deserialization in phpwcms 1.9.45 and earlier and 1.10.8 and earlier allows remote attackers to execute code via crafted imgfile input. The image_resized.php script removes only HTTP and HTTPS prefixes before passing imgfile to is_file and getimagesize, leaving PHAR and PHP wrappers usable. No authentication is required; a crafted request can invoke a PHAR gadget chain or disclose local files through an error oracle.
Summary
What happened
Deserialization in phpwcms 1.9.45 and earlier and 1.10.8 and earlier allows remote attackers to execute code via crafted imgfile input. The image_resized.php script removes only HTTP and HTTPS prefixes before passing imgfile to is_file and getimagesize, leaving PHAR and PHP wrappers usable. No authentication is required; a crafted request can invoke a PHAR gadget chain or disclose local files through an error oracle.
The record
- CVE
- CVE-2025-5499
- Published
- Jun 3, 2025
- Updated
- Jun 3, 2025
- Vendor
- phpwcms
- Product
- phpwcms
- Classifications
- CWE-20, CWE-502, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 3, 2025CVE publishedPublication date reported by the CVE source.
- Jun 3, 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=1.10.0
- Affected versionversion=1.10.1
- Affected versionversion=1.10.2
- Affected versionversion=1.10.3
- Affected versionversion=1.10.4
- Affected versionversion=1.10.5
- Affected versionversion=1.10.6
- Affected versionversion=1.10.7
- Affected versionversion=1.10.8
- Affected versionversion=1.9.0
- Affected versionversion=1.9.1
- Affected versionversion=1.9.10
- Affected versionversion=1.9.11
- Affected versionversion=1.9.12
- Affected versionversion=1.9.13
- Affected versionversion=1.9.14
- Affected versionversion=1.9.15
- Affected versionversion=1.9.16
- Affected versionversion=1.9.17
- Affected versionversion=1.9.18
- Affected versionversion=1.9.19
- Affected versionversion=1.9.2
- Affected versionversion=1.9.20
- Affected versionversion=1.9.21
- Affected versionversion=1.9.22
- Affected versionversion=1.9.23
- Affected versionversion=1.9.24
- Affected versionversion=1.9.25
- Affected versionversion=1.9.26
- Affected versionversion=1.9.27
- Affected versionversion=1.9.28
- Affected versionversion=1.9.29
- Affected versionversion=1.9.3
- Affected versionversion=1.9.30
- Affected versionversion=1.9.31
- Affected versionversion=1.9.32
- Affected versionversion=1.9.33
- Affected versionversion=1.9.34
- Affected versionversion=1.9.35
- Affected versionversion=1.9.36
- Affected versionversion=1.9.37
- Affected versionversion=1.9.38
- Affected versionversion=1.9.39
- Affected versionversion=1.9.4
- Affected versionversion=1.9.40
- Affected versionversion=1.9.41
- Affected versionversion=1.9.42
- Affected versionversion=1.9.43
- Affected versionversion=1.9.44
- Affected versionversion=1.9.45
- Affected versionversion=1.9.5
- Affected versionversion=1.9.6
- Affected versionversion=1.9.7
- Affected versionversion=1.9.8
- Affected versionversion=1.9.9
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
- PHAR deserialization and file-disclosure request for image_resized.phpproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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