Authenticated code execution via PHAR stream wrappers
Published Jun 3, 2025 · Updated Jun 3, 2025
PHP object injection in phpwcms 1.9.45 and earlier and 1.10.8 and earlier allows remote authenticated users to execute code via a crafted PHAR URL. The Custom Source Tab passes cpage_custom directly to file_get_contents() and is_file(), causing PHP to process attacker-selected stream wrappers and deserialize PHAR metadata. Administration access and a valid CSRF token are required; available gadget chains determine whether exploitation reads or deletes files or executes code.
Summary
What happened
PHP object injection in phpwcms 1.9.45 and earlier and 1.10.8 and earlier allows remote authenticated users to execute code via a crafted PHAR URL. The Custom Source Tab passes cpage_custom directly to file_get_contents() and is_file(), causing PHP to process attacker-selected stream wrappers and deserialize PHAR metadata. Administration access and a valid CSRF token are required; available gadget chains determine whether exploitation reads or deletes files or executes code.
The record
- CVE
- CVE-2025-5498
- Published
- Jun 3, 2025
- Updated
- Jun 3, 2025
- Vendor
- phpwcms
- Product
- phpwcms
- Classifications
- CWE-502, CWE-20, T1190
- Attack vector
- network
- Privileges
- authenticated
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
Compare your product and version with the public record. A matching version still requires validation against your environment.
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
- cnt21.readform.inc.php file_get_contents PHAR requestproof of concept · demonstrated
- cnt21.readform.inc.php is_file PHAR requestproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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