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Vulnerability record · CVE-2018-15833 · published 26 August 2018

CVE-2018-15833: Vanillaforums vanilla forums insecure direct object reference vulnerability

Vanillaforums · Vanilla Forums

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).

4.3 CVSS 3.0 Medium EPSS 0.88% · top 42.5% CWE-639 · Insecure direct object reference
4.3CVSS 3.0 base score, v2 4.0
0.88%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

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).

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://hackerone.com/reports/326434 Third Party Advisory
https://open.vanillaforums.com/discussion/36559 Vendor Advisory
https://twitter.com/viperbluff/status/1033067882941304832 Third Party Advisory
https://twitter.com/viperbluff/status/1033640333890834433 Third Party Advisory
https://hackerone.com/reports/326434 Third Party Advisory
https://open.vanillaforums.com/discussion/36559 Vendor Advisory
https://twitter.com/viperbluff/status/1033067882941304832 Third Party Advisory
https://twitter.com/viperbluff/status/1033640333890834433 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.0CVE-2017-1000432Vanillaforums vanilla forums cross-site request forgery vulnerabilityVanilla Forums below 2.1.5 are affected by CSRF leading to Deleting topics and comments from forums Admin accessEPSS 1.6%6.1CVE-2010-4264Vanillaforums vanilla forums cross-site scripting vulnerabilityIt was found in vanilla forums before 2.0.10 a cross-site scripting vulnerability where a filename could contain arbitrary code to execute on the cli…EPSS 0.66%6.1CVE-2010-4266Vanillaforums vanilla forums open redirect vulnerabilityIt was found in vanilla forums before 2.0.10 a potential linkbait vulnerability in dispatcher.EPSS 0.58%5.4CVE-2019-8279Vanillaforums vanilla forums cross-site scripting vulnerabilityMultiple stored XSS in Vanilla Forums before 2.5 allow remote attackers to inject arbitrary JavaScript code into any message on forum.EPSS 0.81%4.3CVE-2014-9685Vanillaforums vanilla cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in Vanilla Forums before 2.0.18.13 and 2.1.x before 2.1.1 allow remote attackers to inject arbitr…EPSS 1.8%3.5CVE-2012-4954Vanillaforums vanilla permissions and access controls vulnerabilityThe edit-profile page in Vanilla Forums before 2.1a32 allows remote authenticated users to modify arbitrary profile settings by replacing the UserID …EPSS 1.1%8.4CVE-2026-55255Langflow IDOR in responses endpoint allows cross-user flow executionLangflow before 1.9.1 has an insecure direct object reference in the /api/v1/responses endpoint. An authenticated attacker can supply another user's …KEVEPSS 0.89%analysed

Source: NIST National Vulnerability Database (record CVE-2018-15833), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.