CVE-2026-42556

Katalog CVE

CVSS 9.0 · Critical EPSS 0,44%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada gitroom postiz. Skor CVSS 3.1 9.0 (Critical) menurut NVD.

Deskripsi (NVD)

Postiz is an AI social media scheduling tool. From version 2.21.6 to before version 2.21.7, any authenticated user who can create a post can store arbitrary HTML in post content by tampering their own save request and send the public preview link /p/<postId>?share=true to another user. The preview page renders that stored HTML with dangerouslySetInnerHTML on the main application origin. This issue has been patched in version 2.21.7.

Rincian

Terbit di NVD

8 Mei 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

9.0 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

0,44% peluang dieksploitasi; lebih tinggi dari 36,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-hhxq-3wg7-4rj8 advisory vendor
• https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.7 product · release notes