peter bassill · operator
$ cve CVE-2009-1030 JSON

CVE-2009-1030 EXPLOIT

4.3
MEDIUM · CVSS 2.0 · EPSS 4.7% (pctl 91)

Patch early

A public exploit exists.

Description

Cross-site scripting (XSS) vulnerability in the choose_primary_blog function in wp-includes/wpmu-functions.php in WordPress MU (WPMU) before 2.7 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host header.

Scoring

CVSS4.3 (MEDIUM, v2.0)
VectorAV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS4.66% — more likely to be exploited than 91% of all CVEs
WeaknessCWE-79
On CISA KEVno
Public exploityes
Published2009-03-20
Last modified2026-06-16

Affected (1)

VendorProduct
wordpresswordpress mu

Public exploits

References

→ the Explorer  ·  watch your stack  ·  NVD