Stored XSS via unsafe editfile write
Published Dec 9, 2021 · Updated Aug 4, 2024
Cross-site scripting in ZZZCMS 1.7.1 allows remote authenticated users to inject script through the editfile action in save.php. The action writes attacker-supplied content into a web-served template JavaScript file without neutralizing script syntax, creating persistent execution when a page loads that file. An authenticated administrator must submit the request, and visiting users execute the stored script in their browsers, enabling data access or page actions within their sessions.
Summary
What happened
Cross-site scripting in ZZZCMS 1.7.1 allows remote authenticated users to inject script through the editfile action in save.php. The action writes attacker-supplied content into a web-served template JavaScript file without neutralizing script syntax, creating persistent execution when a page loads that file. An authenticated administrator must submit the request, and visiting users execute the stored script in their browsers, enabling data access or page actions within their sessions.
The record
- CVE
- CVE-2020-19683
- Published
- Dec 9, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 9, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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.
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
- ZZZCMS V1.7.1 stored XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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