CVE-2020-12720

Name: CVE-2020-12720
Creator: NVD / NIST
Published: 2020-05-08T00:15:12.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 88.95%

Last modified Jun 17, 2026

CVE-2020-12720 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. vBulletin before 5.5.6pl1, 5.6.0 before 5.6.0pl1, and 5.6.1 before 5.6.1pl1 has incorrect access control.. EPSS estimates a 88.95% chance of exploitation in the next 30 days.

Description

vBulletin before 5.5.6pl1, 5.6.0 before 5.6.0pl1, and 5.6.1 before 5.6.1pl1 has incorrect access control.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

88.95%

99.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Vbulletin	Vbulletin	>= 5.0.0, < 5.5.6
Vbulletin	Vbulletin	5.5.6
Vbulletin	Vbulletin	5.6.0
Vbulletin	Vbulletin	5.6.1.-

References

http://packetstormsecurity.com/files/157716/vBulletin-5.6.1-SQL-Injection.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/157904/vBulletin-5.6.1-SQL-Injection.htmlThird Party Advisory, VDB Entry
https://attackerkb.com/topics/RSDAFLik92/cve-2020-12720-vbulletin-incorrect-access-controlThird Party Advisory
https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4440032-vbulletin-5-6-1-security-patch-level-1Vendor Advisory
http://packetstormsecurity.com/files/157716/vBulletin-5.6.1-SQL-Injection.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/157904/vBulletin-5.6.1-SQL-Injection.htmlThird Party Advisory, VDB Entry
https://attackerkb.com/topics/RSDAFLik92/cve-2020-12720-vbulletin-incorrect-access-controlThird Party Advisory
https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4440032-vbulletin-5-6-1-security-patch-level-1Vendor Advisory

Timeline

Published: May 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12720?

vBulletin before 5.5.6pl1, 5.6.0 before 5.6.0pl1, and 5.6.1 before 5.6.1pl1 has incorrect access control.

How severe is CVE-2020-12720?

CVE-2020-12720 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 88.95% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12720?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12720?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST