CVE-2020-17496

Known Exploited Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 94.36% Top 5%
KEV Since 
Vendor Advisory vbulletin.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://cwe.mitre.org/data/definitions/78.html technical description
https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/ third party advisory exploit
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 mailing list third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-17496?
CVE-2020-17496 has been scored as a critical severity vulnerability.
How to fix CVE-2020-17496?
To fix CVE-2020-17496, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-17496 being actively exploited in the wild?
It is confirmed that CVE-2020-17496 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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