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

published 2020-05-07 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-5008

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 88.9%; EPSS 88.9% chance of exploitation in 30 days, percentile 99.7%
public exploits: 2; Metasploit, plus a Nuclei check

Patch / fix

fixed in 1

vbulletin vbulletin 5.5.6

Timeline

2020-03-12 First public exploit (Metasploit auxiliary/gather/vbulletin_getindexablecontent_sqli)
2020-05-07 Published

Exploit prediction

88.95% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Metasploit auxiliary/gather/vbulletin_getindexablecontent_sqli vBulletin /ajax/api/content_infraction/getIndexableContent nodeid Parameter SQL Injection metasploit auxiliary, normal rank, 2020-03-12
Metasploit exploit/multi/http/vbulletin_getindexablecontent vBulletin /ajax/api/content_infraction/getIndexableContent nodeid Parameter SQL Injection metasploit exploit, manual rank, 2020-03-12
Nuclei template vBulletin SQL Injection nuclei detection template

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-89 Improper Neutralization of Special Elements used in an SQL Command
CWE-306 Missing Authentication for Critical Functionality

References

forum.vbulletin.com /forum/vbulletin-announcements/vbulletin-announcements_aa/4440032-vbulletin-5-6-1-security-patch-level-1
vendor-advisory
packetstormsecurity.com /files/157716/vBulletin-5.6.1-SQL-Injection.html
third-party-advisory, vdb-entry
packetstormsecurity.com /files/157904/vBulletin-5.6.1-SQL-Injection.html
third-party-advisory, vdb-entry
attackerkb.com /topics/RSDAFLik92/cve-2020-12720-vbulletin-incorrect-access-control
third-party-advisory

Sources

CVE List CVE-2020-12720
NVD CVE-2020-12720

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary