CVE-2026-48783

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Source
https://cve.org/CVERecord?id=CVE-2026-48783
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48783.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-48783
Aliases
  • GHSA-v4wr-4j8g-4hfj
Published
2026-06-16T21:38:00.674Z
Modified
2026-07-15T01:49:00.745071634Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
Postiz has an unauthenticated billing-enforcement bypass via /public/modify-subscription
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-345",
        "CWE-639",
        "CWE-749",
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48783.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/gitroomhq/postiz-app

Affected ranges

Type
GIT
Repo
https://github.com/gitroomhq/postiz-app
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
23696d2973510ae1f3f48bfa41a6bfbbf9827b05
Fixed
9a7d9deafcf373c759e2ec7955206a2a31b003f3
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.21.8"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

1.*
1.6.0
v0.*
v0.0.1
v1.*
v1.0.0
v1.1.0
v1.10.0
v1.10.1
v1.2.0
v1.22.1
v1.23.1
v1.23.2
v1.24.1
v1.26.1
v1.27.2
v1.28.1
v1.29.1
v1.3.0
v1.30.1
v1.31.1
v1.32.1
v1.33.1
v1.33.2
v1.34.1
v1.35.1
v1.36.1
v1.37.1
v1.37.2
v1.37.3
v1.37.4
v1.38.1
v1.38.2
v1.39.2
v1.39.3
v1.4.0
v1.40.0
v1.40.1
v1.41.0
v1.41.1
v1.43.0
v1.43.1
v1.43.2
v1.43.3
v1.43.4
v1.43.5
v1.44.1
v1.44.2
v1.45.1
v1.47.0
v1.48.1
v1.48.2
v1.48.3
v1.48.4
v1.49.0
v1.49.1
v1.5.0
v1.50.0
v1.51.0
v1.52.0
v1.52.1
v1.52.2
v1.53.0
v1.54.0
v1.54.1
v1.55.0
v1.55.1
v1.55.2
v1.55.3
v1.55.4
v1.55.5
v1.56.0
v1.57.0
v1.58.0
v1.59.0
v1.6.1
v1.6.12
v1.6.2
v1.6.4
v1.6.9
v1.60.0
v1.60.1
v1.61.0
v1.61.2
v1.62.0
v1.62.1
v1.62.2
v1.62.3
v1.63.0
v1.64.0
v1.64.1
v1.65.0
v1.65.1
v1.65.2
v1.65.3
v1.65.4
v1.65.5
v1.65.6
v1.65.7
v1.7.12
v1.8.1
v2.*
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.1.1
v2.1.2
v2.10.0
v2.10.1
v2.11.0
v2.11.1
v2.11.3
v2.12.0
v2.12.1
v2.13.0
v2.14.0
v2.15.0
v2.15.1
v2.16.0
v2.17.0
v2.18.0
v2.19.0
v2.2.0
v2.2.1
v2.2.3
v2.2.4
v2.2.5
v2.20.0
v2.20.1
v2.20.2
v2.21.0
v2.21.1
v2.21.2
v2.21.3
v2.21.5
v2.21.6
v2.21.7
v2.3.0
v2.3.1
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.5.0
v2.5.1
v2.5.2
v2.5.3
v2.5.4
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v2.7.0
v2.8.0
v2.8.1
v2.8.2
v2.8.3
v2.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48783.json"