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CVE-2009-1030
Cross-site scripting (XSS) vulnerability in the choose_primary_blog function in wp-includes/wpmu-functions.php in WordPress MU (WPMU)…
Medium4.3EPSS 4.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 4.7% · top 8.2% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (6)
- 34075 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1021838 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- wordpressmu-wpmufunctions-xss(49184) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20090310 [ISecAuditors Security Advisories] WordPress MU HTTP Header XSS Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- HPSBUX02514 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 8196 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2009-1030)Record last updated .