Is CVE-2026-48783 actively exploited?

No active exploitation of CVE-2026-48783 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-48783 be exploited remotely?

Yes. CVE-2026-48783 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-48783?

CVE-2026-48783 has a CVSS score of 4.8 (MEDIUM).

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MEDIUM

CVE-2026-48783

CWE-345Published: June 17, 2026· Updated: Jun 17, 2026

4.8

CVSS v3.1

Official Description

Postiz is an AI social media scheduling tool. Versions prior to 2.21.8 contained an unauthenticated endpoint that accepted a signed token and applied subscription-enforcement side effects to the organization referenced in that token's claims, without verifying the token's intended purpose. The endpoint, /public/modify-subscription, could not change the persisted subscription tier, but it did execute enforcement-related side effects on the caller's own organization, including adjusting team-member enablement state, disabling integrations exceeding the asserted plan's limits, and resetting the scheduled-post cron when the asserted plan was the free tier. Impact is limited to the attacker's own organization and cannot be redirected at other tenants through this endpoint. This issue has been fixed in version 2.21.8.

NVD Source

Technical Analysis

CVE-2026-48783 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.