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GHSA-673x-f5wx-fxpw
No affected components available
baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) and Remote Code Execution (RCE).
- Impact: XSS to RCE via Arbitrary file upload.
- Attack vector is: Administrator must be logged in.
- Components are: ThemeFilesController.php, UploaderFilesController.php.
- Tested baserCMS Version : 4.3.6 (Latest)
- Affected baserCMS Version : 4.2.0 ~ 4.3.6 (XSS), 3.0.10 ~ 4.3.6 (RCE)
- Patches : https://basercms.net/security/20200827
Found by Vulnerability Research team in Flatt Security Inc.
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs high-level or administrative privileges. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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