What’s Vulnerable › Vulnerabilities

CVE-2019-9889

• Severity: low (CVSS 2.7 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-03-21 · updated 2026-06-17
• Weakness: CWE-22

Description

In Vanilla before 2.6.4, a flaw exists within the getSingleIndex function of the AddonManager class. The issue results in a require call using a crafted type value, leading to Directory Traversal with File Inclusion. An attacker can leverage this vulnerability to execute code under the context of the web server.

Affected products

• Vanilla Forums: before 2.6.4 — fixed in 2.6.4

How to fix

Upgrade to a fixed version: Vanilla Forums 2.6.4. Check the vendor advisory for mitigations.

References

• https://github.com/vanilla/vanilla/compare/b043ae8...9f12b22
• https://github.com/vanilla/vanilla/pull/7840
• https://hackerone.com/reports/411140
• https://github.com/vanilla/vanilla/compare/b043ae8...9f12b22
• https://github.com/vanilla/vanilla/pull/7840
• https://hackerone.com/reports/411140

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