CVE-2026-111609

Low

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.

SeverityLow

CVSS3.8

Exploit probability—

Product

Open Journal Systems

PublishedOct 16, 2026

First seenOct 16, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
PKP Open Journal Systems	v ≤ 3.5.0-5	—

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