Is CVE-2007-4453 being actively exploited?

CVE-2007-4453 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2007-4453?

CVE-2007-4453 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2007-4453

MEDIUM · CVSS 4.3EPSS 1.0%EU EUVD

Multiple cross-site scripting (XSS) vulnerabilities in vBulletin 3.6.8 allow remote attackers to inject arbitrary web code or HTML via the (1) s parameter to index.php, and the (2) q parameter to (a) faq.php, (b) member.php, (c) memberlist.php, (d) calendar.php, (e) search.php, (f) forumdisplay.php, (g) showgroups.php, (h) online.php, and (i) sendmessage.php. NOTE: these issues have been disputed by the vendor, stating "I can't reproduce a single one of these". The researcher is known to be unreliable

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS score: 1.0% (64th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2007-4436)
Published: August 21, 2007
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2007-4436 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

jelsoft / vbulletin

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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