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CVE-2020-12720

86
FAUCET Score

CVE-2020-12720 is a critical access control vulnerability affecting vBulletin versions prior to 5.5.6pl1, 5.6.0pl1, and 5.6.1pl1. With a CVSS score of 9.8, this vulnerability allows unauthenticated attackers to execute SQL injection attacks over the network with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While not on the KEV catalog, exploit modules are readily available in Metasploit and Nuclei, indicating a high likelihood of exploitation, despite limited public discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0.0, < 5.5.6CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*
5.5.6CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin:5.5.6:-:*:*:*:*:*:*
5.6.0CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin:5.6.0:-:*:*:*:*:*:*
5.6.1.-CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin:5.6.1.-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
88.95%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: vBulletin /ajax/api/content_infraction/getIndexableContent nodeid Parameter SQL Injection · Mar 12, 2020
Nuclei: CVE-2020-12720 · May 22, 2020
This CVE's current EPSS score of 0.8895 is in the 99th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/157716/vBulletin-5.6.1-SQL-Injection.html
Third Party AdvisoryVDB Entry
packetstormsecurity.com / files/157904/vBulletin-5.6.1-SQL-Injection.html
Third Party AdvisoryVDB Entry
attackerkb.com / topics/RSDAFLik92/cve-2020-12720-vbulletin-incorrect-access-control
Third Party Advisory
forum.vbulletin.com / forum/vbulletin-announcements/vbulletin-announcements_aa/4440032-vbulletin-5-6-1-security-patch-level-1
Vendor Advisory