Cross-site scripting (XSS) vulnerability in member.php in vBulletin 3.5.x allows remote attackers to inject arbitrary web script or HTML via the u parameter. NOTE: the vendor has disputed this report, stating that they have been unable to replicate the issue and that "the userid parameter is run through our filtering system as an unsigned integer.
CVE-2006-3253
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 78.1%
- KEV
- Not listed
Published
June 28, 2006
Last Modified
April 16, 2026
References (14)
- cve@mitrehttp://securityreason.com/securityalert/1155
- cve@mitrehttp://securitytracker.com/id?1016348
- cve@mitrehttp://www.osvdb.org/27508
- cve@mitrehttp://www.securityfocus.com/archive/1/437817/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/438364/100/100/threaded
- cve@mitrehttp://www.securityfocus.com/bid/18551
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/27261
- af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/1155
- af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1016348
- af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/27508
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/437817/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/438364/100/100/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/18551
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/27261
Data Freshness Timeline
(refreshed 5× in last 7d / 30× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-13 22:25 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
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- 2026-07-09 19:03 UTCEPSS rescore
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- 2026-06-29 14:02 UTCEPSS rescore
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- 2026-06-27 03:04 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
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- 2026-06-23 21:29 UTCEPSS rescore
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- 2026-06-21 01:56 UTCEPSS rescore
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- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-17 17:49 UTCEPSS rescore
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- 2026-06-06 13:44 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 07:56 UTCEG score recompute
- 2026-05-31 07:56 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-27 13:37 UTCEPSS rescore
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- 2026-05-26 13:41 UTCEPSS rescore
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- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
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- 2026-05-21 22:38 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
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- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-28076✓ verifiedFirst seen Jun 20, 2006
vBulletin 3.0.9/3.5.x - 'member.php' Cross-Site Scripting
Open source ↗
Frequently asked(4)
What is CVE-2006-3253?
When was CVE-2006-3253 disclosed?
Is CVE-2006-3253 actively exploited?
How do I remediate CVE-2006-3253?
Dependency Blast Radius
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