🛡️ CVE-2026-48799

🟠 CVSS 7.7 — High ✅ No Known Exploit CWE-345 NVD
7.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Postiz is an AI social media scheduling tool. Prior to 2.21.8, Postiz fails to verify Nowpayments IPN callback authenticity against the payment provider shared secret and reads the target subscription identifier from the untrusted request body, allowing a low-privileged account to grant arbitrary organizations lifetime PRO subscriptions without payment. This issue is fixed in version 2.21.8.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

CVE-2026-48799 is classified as CWE-345: Insufficient Verification of Data Authenticity. Data is trusted without confirming it really came from the claimed source and was not altered.

Affected software

CVE-2026-48799 is recorded against 1 package.

  • unknown

Timeline and source

Published on 15 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

gadvisory.org
github.com
github.com
github.com

Details

Severity HIGH
CVSS Score 7.7
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
CWE CWE-345
Public Exploit ✅ No
Source NVD
Published 2026-07-15
Updated 2026-08-11
Modified 2026-07-15
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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