Arbitrary file read via traversal filter bypass
Published May 7, 2024 · Updated Aug 2, 2024
Path traversal in CmsEasy 7.7.7.9 allows remote authenticated users to read arbitrary server files through the template editor. The fckedit_action method in lib/admin/template_admin.php strips ../ and ./ from the id parameter before decoding d to /, so nested dot-and-slash sequences survive filtering and become traversal paths passed to file_get_contents. Access to the administrative template editor is required, and successful exploitation discloses files readable by the web-server process without modifying them.
Summary
What happened
Path traversal in CmsEasy 7.7.7.9 allows remote authenticated users to read arbitrary server files through the template editor. The fckedit_action method in lib/admin/template_admin.php strips ../ and ./ from the id parameter before decoding d to /, so nested dot-and-slash sequences survive filtering and become traversal paths passed to file_get_contents. Access to the administrative template editor is required, and successful exploitation discloses files readable by the web-server process without modifying them.
The record
- CVE
- CVE-2024-34315
- Published
- May 7, 2024
- Updated
- Aug 2, 2024
- Vendor
- Beijing Kaite Weiye Science and Technology Co., Ltd.
- Product
- CmsEasy
- Classifications
- CWE-22, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 7, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record 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=7.7.7.9
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
- CmsEasy 7.7.7.9 File Inclusion2 requestfunctional · demonstrated
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Technologies
Your stack
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Your stack
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