Description
PKP Open Journal Systems through 3.5.0-5 contains an insecure direct object reference vulnerability that allows journal or subscription managers to access other journals' subscriptions by supplying arbitrary subscription ids. Attackers can enumerate sequential ids through editSubscription to view subscriber details and use updateSubscription to reassign subscriptions to their own journal, revoking victims' access.
Published: 2026-10-16
Score: 5.1 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 16 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Description PKP Open Journal Systems through 3.5.0-5 contains an insecure direct object reference vulnerability that allows journal or subscription managers to access other journals' subscriptions by supplying arbitrary subscription ids. Attackers can enumerate sequential ids through editSubscription to view subscriber details and use updateSubscription to reassign subscriptions to their own journal, revoking victims' access.
Title PKP Open Journal Systems through 3.5.0-5 Cross-Journal Subscription IDOR via updateSubscription
First Time appeared Openjournalsystems
Openjournalsystems open Journal Systems
Weaknesses CWE-639
CPEs cpe:2.3:a:openjournalsystems:open_journal_systems:*:*:*:*:*:*:*:*
Vendors & Products Openjournalsystems
Openjournalsystems open Journal Systems
References
Metrics cvssV3_1

{'score': 3.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Openjournalsystems Open Journal Systems
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-16T17:38:49.767Z

Reserved: 2026-10-16T14:31:09.242Z

Link: CVE-2026-111609

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-16T18:17:40.103

Modified: 2026-10-16T18:17:40.103

Link: CVE-2026-111609

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-16T18:30:14Z

Weaknesses