wordplus Better Messages Plugin up to 2.15.19 on WordPress File Path Validation delete_sticker path traversal

Summaryinfo

A vulnerability has been found in wordplus Better Messages Plugin up to 2.15.19 and classified as problematic. This impacts the function delete_sticker of the component File Path Validation. Performing a manipulation results in path traversal. This vulnerability is cataloged as CVE-2026-16585. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in wordplus Better Messages Plugin up to 2.15.19. This affects the function delete_sticker of the component File Path Validation. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. This is going to have an impact on integrity, and availability. The summary by CVE is:

The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the delete_sticker function in all versions up to, and including, 2.15.19. This makes it possible for authenticated attackers, with administrator-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The prefix check intended to restrict deletion to the uploads directory can be bypassed by crafting a URL that begins with the legitimate uploads base URL but embeds ../ traversal sequences in the path portion, as the normalize_sticker function only applies esc_url_raw(), which does not strip ../ sequences, allowing the traversal payload to be stored verbatim in WordPress options.

It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-16585 since 07/22/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• wordplus

Name

• Better Messages Plugin

Version

• 2.15.0
• 2.15.1
• 2.15.2
• 2.15.3
• 2.15.4
• 2.15.5
• 2.15.6
• 2.15.7
• 2.15.8
• 2.15.9
• 2.15.10
• 2.15.11
• 2.15.12
• 2.15.13
• 2.15.14
• 2.15.15
• 2.15.16
• 2.15.17
• 2.15.18
• 2.15.19

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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