CVE-2026-57958 Details
Description
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.
A reflected cross-site scripting vulnerability has been identified in Mixpost versions through 2.6.0. This issue allows unauthenticated attackers to execute arbitrary JavaScript in the browsers of authenticated users. The vulnerability arises from the OAuth callback controller's failure to properly sanitize error query parameters before they are rendered through Laravel flash messages, using Vue's v-html directive. Exploitation of this vulnerability could lead to hijacking authenticated user sessions or performing unauthorized actions.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 29, 2026CISA-ADP
Assessed Jun 29, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/inovector/mixpost/issues/204 | CISA-ADP | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/inovector/mixpost/issues/204 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/mixpost-reflected-xss-via-oauth-callback-error-parameter | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Mixpost | <= 2.6.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 29, 2026 | CVE Modified | CISA-ADP |
| Jun 29, 2026 | New CVE Received | [email protected] |