TickTick Limited 8.2.2.0 ShareReceiveActivity _display_name path traversal

Summaryinfo

A vulnerability, which was classified as problematic, was found in TickTick Limited TickTick 8.2.2.0. The affected element is the function FileManager.getDisplayNameFromUri/AttachmentFileHelper.copyFileDirectly of the component ShareReceiveActivity. Executing a manipulation of the argument _display_name can lead to path traversal. The identification of this vulnerability is CVE-2026-11319. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability was found in TickTick Limited TickTick 8.2.2.0. It has been declared as problematic. This vulnerability affects the function FileManager.getDisplayNameFromUri/AttachmentFileHelper.copyFileDirectly of the component ShareReceiveActivity. The manipulation of the argument _display_name with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect integrity. CVE summarizes:

TickTick Android application (com.ticktick.task) 8.2.2.0 contains a path traversal vulnerability in its exported ShareReceiveActivity that allows a malicious local application to write files outside the intended attachment directory by supplying a crafted content:// URI with a traversal filename via ACTION_SEND intents. A malicious application can register a ContentProvider returning a _display_name value containing traversal sequences, which is passed unsanitized through FileManager.getDisplayNameFromUri and AttachmentFileHelper.copyFileDirectly, causing automatic file writes to attacker-chosen locations with TickTick's application privileges.

The advisory is available at github.com. This vulnerability was named CVE-2026-11319 since 06/04/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• TickTick Limited

Name

• TickTick

Version

• 8.2.2.0

CPE 2.3info

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CPE 2.2info

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