Security Vulnerabilities - CVEs Published In September 2021
Nextcloud server is an open source, self hosted personal cloud. Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untrusted user-supplied content. There are several security concerns with passing user-generated content to this library, such as Server-Side-Request-Forgery, file disclosure or potentially executing code on the system. The risk depends on your system configuration and the installed library version. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. These versions do not use this library anymore. As a workaround users may disable previews by setting `enable_previews` to `false` in `config.php`.
CVSS Score
9.3
EPSS Score
0.023
Published
2021-09-07
Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. In affected versions the Nextcloud Text application returned different error messages depending on whether a folder existed in a public link share. This is problematic in case the public link share has been created with "Upload Only" privileges. (aka "File Drop"). A link share recipient is not expected to see which folders or files exist in a "File Drop" share. Using this vulnerability an attacker is able to enumerate folders in such a share. Exploitation requires that the attacker has access to a valid affected "File Drop" link share. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.0.1. Users who are unable to upgrade are advised to disable the Nextcloud Text application in the app settings.
CVSS Score
5.3
EPSS Score
0.004
Published
2021-09-07
Nextcloud Richdocuments is an open source collaborative office suite. In affected versions the File Drop features ("Upload Only" public link shares in Nextcloud) can be bypassed using the Nextcloud Richdocuments app. An attacker was able to read arbitrary files in such a share. It is recommended that the Nextcloud Richdocuments is upgraded to 3.8.4 or 4.2.1. If upgrading is not possible then it is recommended to disable the Richdocuments application.
CVSS Score
7.5
EPSS Score
0.004
Published
2021-09-07
Nextcloud Richdocuments is an open source collaborative office suite. In affected versions there is a lack of rate limiting on the Richdocuments OCS endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. It is recommended that the Nextcloud Richdocuments app is upgraded to either 3.8.4 or 4.2.1 to resolve. For users unable to upgrade it is recommended that the Richdocuments application be disabled.
CVSS Score
5.3
EPSS Score
0.004
Published
2021-09-07
Eyoucms 1.5.4 is vulnerable to Directory Traversal. Due to a lack of input data sanitizaton in param tpldir, filename, type, nid an attacker can inject "../" to escape and write file to writeable directories.
CVSS Score
7.5
EPSS Score
0.011
Published
2021-09-07
EyouCMS 1.5.4 is vulnerable to Open Redirect. An attacker can redirect a user to a malicious url via the Logout function.
CVSS Score
6.1
EPSS Score
0.388
Published
2021-09-07
ClinicCases 7.3.3 is affected by Cross-Site Request Forgery (CSRF). A successful attack would consist of an authenticated user following a malicious link, resulting in arbitrary actions being carried out with the privilege level of the targeted user. This can be exploited to create a secondary administrator account for the attacker.
CVSS Score
8.8
EPSS Score
0.007
Published
2021-09-07
messages_load.php in ClinicCases 7.3.3 suffers from a blind SQL injection vulnerability, which allows low-privileged attackers to execute arbitrary SQL commands through a vulnerable parameter.
CVSS Score
8.8
EPSS Score
0.007
Published
2021-09-07
Persistent cross-site scripting (XSS) vulnerabilities in ClinicCases 7.3.3 allow low-privileged attackers to introduce arbitrary JavaScript to account parameters. The XSS payloads will execute in the browser of any user who views the relevant content. This can result in account takeover via session token theft.
CVSS Score
5.4
EPSS Score
0.002
Published
2021-09-07
kaml is an open source implementation of the YAML format with support for kotlinx.serialization. In affected versions attackers that could provide arbitrary YAML input to an application that uses kaml could cause the application to endlessly loop while parsing the input. This could result in resource starvation and denial of service. This only affects applications that use polymorphic serialization with the default tagged polymorphism style. Applications using the property polymorphism style are not affected. YAML input for a polymorphic type that provided a tag but no value for the object would trigger the issue. Version 0.35.3 or later contain the fix for this issue.
CVSS Score
4.3
EPSS Score
0.005
Published
2021-09-07