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.
Severity (CVSS)
| Base score | 5.1 |
|---|---|
| Severity | Medium |
| Version | CVSS 4.0 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| Provided by | CNA |
Weaknesses
- CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected products
| Vendor | Product | Versions |
|---|---|---|
| inovector | mixpost | 0 to <=2.6.0 |
References
- https://github.com/inovector/mixpost/issues/204 (issue-tracking)
- https://www.vulncheck.com/advisories/mixpost-reflected-xss-via-oauth-callback-error-parameter (third-party-advisory)
Generated from the official CVE List on 30 Jun 2026 07:04 UTC.