Description
WordPress before 4.8.3 is affected by an issue where $wpdb->prepare() can create unexpected and unsafe queries leading to potential SQL injection (SQLi) in plugins and themes, as demonstrated by a "double prepare" approach, a different vulnerability than CVE-2017-14723.
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 | 4.8.3+dfsg-1 | — |
| Debian 13 | wordpress | 4.8.3+dfsg-1 | — |
| Debian 12 | wordpress | 4.8.3+dfsg-1 | — |
| Debian 9 | wordpress | 4.7.5+dfsg-2+deb9u2 | DSA-4090-1 |
| Debian 8 | wordpress | 4.1+dfsg-1+deb8u16 | DSA-4090-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | wordpress | 3.6.1+dfsg-1~deb7u18 | DLA-1160-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | wordpress | No fix yet | — |
Advisories 2
- DSA-4090-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1160-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/WordPress/WordPress/commit/a2693fd8602e3263b5925b9d799ddd577202167d
- DSA-4090 vendor-advisory
- [debian-lts-announce] 20171104 [SECURITY] [DLA 1160-1] wordpress security update mailing-list
- 101638 vdb-entry
- https://wpvulndb.com/vulnerabilities/8941
- https://codex.wordpress.org/Version_4.8.3
- https://blog.ircmaxell.com/2017/10/disclosure-wordpress-wpdb-sql-injection-technical.html
- https://wordpress.org/news/2017/10/wordpress-4-8-3-security-release/