Auth bypass in Fossasia Eventyay-Exhibition
CVE-2026-122325
fossasia eventyay-exhibition through commit f68888e contains an authorization bypass vulnerability in the exhibitor lead creation API that allows exhibitors to access other organizers' attendee data. Exhibitors with lead scanning enabled can submit another event's pseudonymization id or order secret while naming that organizer in the URL to retrieve attendee names, emails, addresses and answers.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Fossasia Eventyay-Exhibition — versions f68888e312c220588ddc13f8bbc4bab927b5e530
Weakness classification (CWE)
References
- github.com/fossasia/eventyay-exhibition (product)
- github.com/fossasia/eventyay-exhibition/blob/f68888e312c220588ddc13f8bbc4bab927… (technical-description)
- github.com/fossasia/eventyay-exhibition/issues/343 (issue-tracking)
- github.com/fossasia/eventyay-exhibition/pull/383 (issue-tracking, patch)
- hackmd.io/@hieuPenguinnn/eventyay-exhibition-cross-event-lead-idor (third-party-advisory)
- www.vulncheck.com/advisories/eventyay-exhibition-through-commit-f68888e-cross-e… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-122325?
- CVE-2026-122325 is a low-severity vulnerability in Fossasia Eventyay-Exhibition, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 3.1/10. Published 2026-11-05.
- How severe is CVE-2026-122325?
- Low severity. CVSS v3 base score is 3.1 out of 10.