Description
The customizer in WordPress before 4.5.3 allows remote attackers to bypass intended redirection restrictions via unspecified vectors.
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 | 4.5.3+dfsg-1 | — |
| Debian 13 | wordpress | 4.5.3+dfsg-1 | — |
| Debian 12 | wordpress | 4.5.3+dfsg-1 | — |
| Debian 8 | wordpress | 4.1+dfsg-1+deb8u9 | DSA-3639-1 |
| Debian 7 | wordpress | 3.6.1+dfsg-1~deb7u11 | DLA-568-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | wordpress | No fix yet | — |
Advisories 2
- DLA-568-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3639-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://wordpress.org/news/2016/06/wordpress-4-5-3/
- https://codex.wordpress.org/Version_4.5.3
- 1036163 vdb-entry
- 91362 vdb-entry
- https://wpvulndb.com/vulnerabilities/8522
- DSA-3639 vendor-advisory