WordPress MU vulnerabilities
WordPress core slug wpmu · 11 known vulnerabilities · latest disclosed 2009-09-08
Every listed vulnerability has a fix. Version 2.8.1 or later is not affected by any of them. If your site runs an older version, update it.
3 of 11 rated high or critical (CVSS 7 or more).
Known vulnerabilities in WordPress MU
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 5.3 | <= 2.8 | 2.8.1 | CVE-2009-2432 | 2009-09-08 | Advisory |
| Medium 5.3 | <= 2.8 | 2.8.1 | CVE-2009-2336 | 2009-07-09 | Advisory |
| Medium 6.1 | <= 2.8 | 2.8.1 | CVE-2009-2334 | 2009-07-09 | Advisory |
| Medium 5.3 | <= 2.8 | 2.8.1 | CVE-2009-2335 | 2009-07-09 | Advisory |
| Medium 6.4 | < 2.7 | 2.7 | CVE-2009-1030 | 2009-03-10 | Advisory |
| Medium 6.4 | < 2.6 | 2.6 | CVE-2008-4671 | 2008-09-01 | Advisory |
| High 8.8 | <= 1.3.1 | 1.3.2 | CVE-2008-5695 | 2007-09-08 | Advisory |
| Critical 9.8 | < 1.2.5 | 1.2.5 | CVE-2007-4894 | 2007-09-08 | Advisory |
| Medium 6.1 | <= 1.0 | 1.1.1 | CVE-2007-4544 | 2007-08-22 | Advisory |
| High 8.8 | <= 1.2.3 | 1.2.4 | CVE-2007-3544 | 2007-08-05 | Advisory |
| Medium 6.4 | < 1.2.5a | 1.2.5a | CVE-2007-4893 | 2007-08-05 | Advisory |
Check if a site is affected
Enter a site address to see which version of WordPress MU and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the WordPress MU WordPress core safe to use?
All 11 known issues are fixed in current versions (2.8.1 or later). Keeping it updated is what matters.
How do I check which version of WordPress MU my site runs?
In WordPress go to Dashboard > Updates. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable WordPress core?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.