{"cve":"CVE-2026-111609","nvd":{"published":"2026-10-16T18:17:40.103","modified":"2026-10-21T03:17:19.073","status":"Awaiting Analysis","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.","cvss_v4":{"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","score":5.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N","score":3.8},"cwes":["CWE-639"],"references":["https://github.com/pkp/ojs/blob/3_5_0-5/controllers/grid/subscriptions/IndividualSubscriptionForm.php#L47-L51","https://github.com/pkp/ojs/blob/3_5_0-5/controllers/grid/subscriptions/InstitutionalSubscriptionForm.php#L57-L62","https://hackmd.io/@hieuPenguinnn/ojs-subscription-form-cross-journal-idor","https://www.vulncheck.com/advisories/pkp-open-journal-systems-through-3.5.0-5-cross-journal-subscription-idor-via-updatesubscription","https://hackmd.io/@hieuPenguinnn/ojs-subscription-form-cross-journal-idor"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-111609","score":0.00303,"percentile":0.22796,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}