Description
Before version 4.8.2, WordPress allowed a Directory Traversal attack in the Customizer component via a crafted theme filename.
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 | 4.8.2+dfsg-1 | — |
| Debian 13 | wordpress | 4.8.2+dfsg-1 | — |
| Debian 12 | wordpress | 4.8.2+dfsg-1 | — |
| Debian 9 | wordpress | 4.7.5+dfsg-2+deb9u1 | DSA-3997-1 |
| Debian 8 | wordpress | 4.1+dfsg-1+deb8u15 | DSA-3997-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | wordpress | 3.6.1+dfsg-1~deb7u17 | DLA-1151-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | wordpress | No fix yet | — |
Advisories 2
- DSA-3997-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1151-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026