AEGLIX vulnerability intelligence
CVE-2020-17496
CRITICAL · CVSS 9.8 · Analyzed
Published: 2020-08-12 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
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.
Severity and scoring
- CVSS score
- 9.8 · CRITICAL
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-74
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- vBulletin · vBulletin
- Added to catalog
- 2021-11-03
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-05-03
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*
From (inclusive): 5.5.4
Through (inclusive): 5.6.2
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/
Exploit · Third Party Advisory
- https://cwe.mitre.org/data/definitions/78.html
Technical Description
- https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch
Patch · Vendor Advisory
- https://seclists.org/fulldisclosure/2020/Aug/5
Exploit · Mailing List · Third Party Advisory
- https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/
Exploit · Third Party Advisory
- https://cwe.mitre.org/data/definitions/78.html
Technical Description
- https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch
Patch · Vendor Advisory
- https://seclists.org/fulldisclosure/2020/Aug/5
Exploit · Mailing List · Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17496
US Government Resource