CVE-2020-17496

CRITICAL CISA KEV EPSS 99.7%
Published Aug 12, 20205y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Aug 12, 2020 5y ago
Last Modified Jun 17, 2026 2w ago
KEV Listed Nov 3, 2021 4y ago
KEV Due May 3, 2022 1524d overdue

Description

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request. NOTE: this issue exists because of an incomplete fix for CVE-2019-16759.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

CISA Known Exploited Overdue 1524d
Added
Nov 3, 2021
Due
May 3, 2022

Apply updates per vendor instructions.

EPSS Exploit Probability
99.7% percentile
Exploit & Patch Status
Actively Exploited (KEV)
Patch Available

Weaknesses 1

CWE-74

Affected Products 1

VendorProductVersionRange
vbulletinvbulletin*≥5.5.4  –  ≤5.6.2

References 5

  • blog.exploitee.rs https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/
    ExploitThird Party Advisory
  • cwe.mitre.org https://cwe.mitre.org/data/definitions/78.html
    Technical Description
  • forum.vbulletin.com https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch
    PatchVendor Advisory
  • seclists.org https://seclists.org/fulldisclosure/2020/Aug/5
    ExploitMailing ListThird Party Advisory
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17496
    US Government Resource

Remediation

  • forum.vbulletin.com https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch
    PatchVendor Advisory