inovector mixpost up to 2.6.0 cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in inovector mixpost up to 2.6.0. Affected by this issue is some unknown functionality. This manipulation causes cross site scripting. This vulnerability appears as CVE-2026-57958. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in inovector mixpost up to 2.6.0 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Mixpost through 2.6.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in authenticated users' browsers by crafting malicious OAuth callback URLs with unsanitized error query parameters. Attackers can exploit the OAuth callback controller's failure to sanitize error parameters before rendering them through Laravel flash messages via the Vue v-html directive to hijack authenticated user sessions or perform unauthorized actions.

The weakness was presented by George Chen as 204. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-57958 since 06/26/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-40143). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• inovector

Name

• mixpost

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6.0

Website

• Product: https://github.com/inovector/mixpost/

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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