Arbitrary script execution via Top Directory XSS
Published Oct 24, 2023 · Updated Sep 11, 2024
Cross-site scripting in CMS Made Simple 2.2.18 allows remote authenticated users to execute arbitrary script through the File Picker Menu Top Directory parameter. The parameter is stored and later rendered without output encoding, so crafted JavaScript executes in an administrator's browser when the affected menu is opened. Exploitation requires a low-privilege CMS account and a victim who views the manipulated file-picker interface; the documented impact is limited confidentiality and integrity loss.
Summary
What happened
Cross-site scripting in CMS Made Simple 2.2.18 allows remote authenticated users to execute arbitrary script through the File Picker Menu Top Directory parameter. The parameter is stored and later rendered without output encoding, so crafted JavaScript executes in an administrator's browser when the affected menu is opened. Exploitation requires a low-privilege CMS account and a victim who views the manipulated file-picker interface; the documented impact is limited confidentiality and integrity loss.
The record
- CVE
- CVE-2023-43360
- Published
- Oct 24, 2023
- Updated
- Sep 11, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 24, 2023CVE publishedPublication date reported by the CVE source.
- Sep 11, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- CMSmadesimple-Stored-XSS---File-Picker-extensionproof of concept · unverified
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Technologies
Your stack
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Your stack
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