What is CVE-2019-17271?

CVE-2019-17271 is a medium-severity vulnerability in Vbulletin, classified under SQL Injection. CVSS score: 4.9/10. Published 2019-10-08.

How severe is CVE-2019-17271?

Medium severity. CVSS v3 base score is 4.9 out of 10.

SQL Injection in Vbulletin

CVE-2019-17271

vBulletin 5.5.4 allows SQL Injection via the ajax/api/hook/getHookList or ajax/api/widget/getWidgetList where parameter.

Vulnerability class: SQL Injection

Published 2019-10-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.014 (72.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Vbulletin

Weakness classification (CWE)

CWE-89 — SQL Injection

References

forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa (Patch, Vendor Advisory)
packetstormsecurity.com/files/154758/vBulletin-5.5.4-SQL-Injection.html (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2019-17271?: CVE-2019-17271 is a medium-severity vulnerability in Vbulletin, classified under SQL Injection. CVSS score: 4.9/10. Published 2019-10-08.
How severe is CVE-2019-17271?: Medium severity. CVSS v3 base score is 4.9 out of 10.