Description
wp-includes/functions.php in WordPress before 3.6.1 does not properly determine whether data has been serialized, which allows remote attackers to execute arbitrary code by triggering erroneous PHP unserialize operations.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wordpress | 3.6.1+dfsg-1 | — |
| Debian 13 | wordpress | 3.6.1+dfsg-1 | — |
| Debian 12 | wordpress | 3.6.1+dfsg-1 | — |
| Debian 7 | wordpress | 3.6.1+dfsg-1~deb7u1 | DSA-2757-1 |
| Debian 6.0 | wordpress | 3.6.1+dfsg-1~deb6u1 | DSA-2757-1 |
Advisories 1
- DSA-2757-1 wordpress - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- FEDORA-2013-16925 vendor-advisory
- http://core.trac.wordpress.org/changeset/25325
- FEDORA-2013-16855 vendor-advisory
- DSA-2757 vendor-advisory
- http://codex.wordpress.org/Version_3.6.1
- http://wordpress.org/news/2013/09/wordpress-3-6-1/
- FEDORA-2013-16895 vendor-advisory