VulnerabilityModified

CVE-2013-6129

The install/upgrade.php scripts in vBulletin 4.1 and 5 allow remote attackers to create administrative accounts via the customerid, htmldata[password], htmldata[confirmpassword], and htmldata[email] parameters, as exploited in the wild in October 2013.

EXPLOIT ✓HIGH 7.5EPSS 51.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 51.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

CVSS 2.0: 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS: 51.89% probability · 99th percentile
Public exploits: 1 in Exploit-DB · verified · first 13 October 2013
CISA KEV: Not listed
Weakness: CWE-264
Affected: vbulletin/vbulletin
Source: cve@mitre.org

EPSS trend

EPSS 51.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-ID	Title	Type	Published	Verified
EDB-38785 source ↗	vBulletin 4.1.x - '/install/upgrade.php' Security Bypassphp · Joshua Rogers	webapps	13 October 2013	yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.