CVE-2013-6129
HighExploitedPublic exploitThe 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.
Published Oct 19, 2013 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2013-6129 is a high-severity vulnerability (CVSS 7.5 v2) affecting Vbulletin.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 19, 2013. Public exploit code is available.
- EPSS estimates a 52% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
52%
Higher than 98.9% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2013-6129 brief as a PDF
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Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Oct 19, 2013 | n/a | Not reported |
| CIRCL KEV | Oct 19, 2013 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| VbulletinVbulletin | 4.1, 5.0.0 | n/a |
Timeline
Publicly disclosed
Oct 19, 2013
Added to Industry KEV feed
Oct 19, 2013
Added to CIRCL KEV
Oct 19, 2013
Last updated
Apr 28, 2026
Weakness Type
- CWE-264
References
- advisoryhttp://www.vbulletin.com/forum/forum/vbulletin-announcements/vbulletin-announcements_aa/3991423-potential-vbulletin-exploit-vbulletin-4-1-vbulletin-5
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitExploitDB-38785
- exploithttp://www.net-security.org/secworld.php?id=15743
FAQ
Common Questions.
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.
Affected: Vbulletin versions 4.1, 5.0.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 19, 2013.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2013-6129 Running On Your Attack Surface?
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