What is CVE-2019-17132?

CVE-2019-17132 is a critical-severity vulnerability in Vbulletin, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-10-04.

How severe is CVE-2019-17132?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-17132 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Vbulletin

CVE-2019-17132

vBulletin through 5.5.4 mishandles custom avatars.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.118 (96.0th percentile), scored 2026-10-07.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.117 · newest: 0.118 · change: +0.001

Affected products

Vbulletin

Weakness classification (CWE)

Public proof-of-concept exploits

References

forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/44… (Vendor Advisory)
seclists.org/fulldisclosure/2019/Oct/9 (mailing-list, Third Party Advisory)
packetstormsecurity.com/files/154759/vBulletin-5.5.4-Remote-Code-Execution.html (Third Party Advisory)

Frequently asked questions

What is CVE-2019-17132?: CVE-2019-17132 is a critical-severity vulnerability in Vbulletin, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-10-04.
How severe is CVE-2019-17132?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-17132 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.