Auth bypass in Vanillaforums Vanilla Forums
CVE-2018-15833
In Vanilla before 2.6.1, the polling functionality allows Insecure Direct Object Reference (IDOR) via the Poll ID, leading to the ability of a single user to select multiple Poll Options (e.g., vote for multiple items).
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
References
- twitter.com/viperbluff/status/1033067882941304832 (Third Party Advisory)
- open.vanillaforums.com/discussion/36559 (Vendor Advisory)
- hackerone.com/reports/326434 (Third Party Advisory)
- twitter.com/viperbluff/status/1033640333890834433 (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-15833?
- CVE-2018-15833 is a medium-severity vulnerability in Vanillaforums Vanilla Forums, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2018-08-26.
- How severe is CVE-2018-15833?
- Medium severity. CVSS v3 base score is 4.3 out of 10.