CVE-2020-17496

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.

• CWE-74
• CWE-74

• https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/Exploit, Third Party Advisory
• https://cwe.mitre.org/data/definitions/78.htmlTechnical Description
• https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patchPatch, Vendor Advisory
• https://seclists.org/fulldisclosure/2020/Aug/5Exploit, 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.htmlTechnical Description
• https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patchPatch, Vendor Advisory
• https://seclists.org/fulldisclosure/2020/Aug/5Exploit, Mailing List, Third Party Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17496US Government Resource

Published

Aug 12, 2020

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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