CVE-2026-111609

PKP Open Journal Systems through 3.5.0-5 Cross-Journal Subscription IDOR via updateSubscription

Published Oct 16, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 21, 2026, 2:31 AM
Reserved
Oct 16, 2026, 2:31 PM
Status
Awaiting Analysis
Published
Oct 16, 2026, 6:17 PM
Modified
Oct 21, 2026, 3:17 AM