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Ubuntu Security Notice 7000-2 - USN-7000-1 fixed vulnerabilities in Expat. This update provides the corresponding updates for Ubuntu 22.04 LTS. Shang-Hung Wan discovered that Expat did not properly handle certain function calls when a negative input length was provided. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.

Online Exam System version 1.0 suffers from an ignored default credential vulnerability.

### Impact It's possible to get access to notification filters of any user by using a URL such as `<hostname>xwiki/bin/get/XWiki/Notifications/Code/NotificationFilterPreferenceLivetableResults?outputSyntax=plain&type=custom&user=<username>`. This vulnerability impacts all versions of XWiki since 13.2-rc-1. The filters do not provide much information (they mainly contain references which are public data in XWiki), though some info could be used in combination with other vulnerabilities. ### Patches The vulnerability has been patched in XWiki 14.10.21, 15.5.5, 15.10.1, 16.0RC1. The patch consists in checking the rights of the user when sending the data. ### Workarounds It's possible to workaround the vulnerability by applying manually the patch: it's possible for an administrator to edit directly the document `XWiki.Notifications.Code.NotificationFilterPreferenceLivetableResults` to apply the same changes as in the patch. See c8c6545f9bde6f5aade994aa5b5903a67b5c2582. ### Reference...

### Impact It's possible for any user knowing the ID of a notification filter preference of another user, to enable/disable it or even delete it. The impact is that the target user might start loosing notifications on some pages because of this. This vulnerability is present in XWiki since 13.2-rc-1. ### Patches The vulnerability has been patched in XWiki 14.10.21, 15.5.5, 15.10.1, 16.0-rc-1. The patch consists in checking properly the rights of the user before performing any action on the filters. ### Workarounds It's possible to fix manually the vulnerability by editing the document `XWiki.Notifications.Code.NotificationPreferenceService` to apply the changes performed in this commit e8acc9d8e6af7dfbfe70716ded431642ae4a6dd4. ### References * JIRA ticket: https://jira.xwiki.org/browse/XWIKI-20337 * Commit: e8acc9d8e6af7dfbfe70716ded431642ae4a6dd4 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https...

Online Bus Ticket Booking Website version 1.0 suffers from a remote SQL injection vulnerability that allows for authentication bypass.

Nipah Virus Testing Management System version 1.0 suffers from a remote SQL injection vulnerability that allows for authentication bypass.

Ubuntu Security Notice 7017-1 - Iggy Frankovic discovered that Quagga incorrectly handled certain BGP messages. A remote attacker could possibly use this issue to cause Quagga to crash, resulting in a denial of service.

Ubuntu Security Notice 7016-1 - Iggy Frankovic discovered that FRR incorrectly handled certain BGP messages. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service.

Membership Management System version 1.1 suffers from a remote SQL injection vulnerability that allows for authentication bypass.

HYSCALE System version 1.9 suffers from add administrator and cross site request forgery vulnerabilities.