CVE-2026-57958

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/inovector/mixpost/issues/204
https://www.vulncheck.com/advisories/mixpost-reflected-xss-via-oauth-callback-error-parameter
https://github.com/inovector/mixpost/issues/204

Configurations

No configuration.

History

29 Jun 2026, 19:16

Type	Values Removed	Values Added
References	~~() https://github.com/inovector/mixpost/issues/204 -~~	() https://github.com/inovector/mixpost/issues/204 -

29 Jun 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-29 18:16

Updated : 2026-06-29 19:16

NVD link : CVE-2026-57958

Mitre link : CVE-2026-57958

CVE.ORG link : CVE-2026-57958

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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