Description
Multiple cross-site scripting (XSS) vulnerabilities in WordPress before 4.1.2, when MySQL is used without strict mode, allow remote attackers to inject arbitrary web script or HTML via a (1) four-byte UTF-8 character or (2) invalid character that reaches the database layer, as demonstrated by a crafted character in a comment.
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 | 4.2+dfsg-1 | — |
| Debian 13 | wordpress | 4.2+dfsg-1 | — |
| Debian 12 | wordpress | 4.2+dfsg-1 | — |
| Debian 8 | wordpress | 4.1+dfsg-1+deb8u1 | DSA-3250-1 |
| Debian 7 | wordpress | 3.6.1+dfsg-1~deb7u6 | DSA-3250-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | wordpress | 3.6.1+dfsg-1~deb6u6 | DLA-236-1 |
Advisories 2
- DLA-236-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3250-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- FEDORA-2015-6778 vendor-advisory
- https://wpvulndb.com/vulnerabilities/7929
- https://wordpress.org/news/2015/04/wordpress-4-1-2/
- 74269 vdb-entry
- FEDORA-2015-6790 vendor-advisory
- 1032207 vdb-entry
- DSA-3250 vendor-advisory
- http://codex.wordpress.org/Version_4.1.2
- https://cedricvb.be/post/wordpress-stored-xss-vulnerability-4-1-2/
- FEDORA-2015-6808 vendor-advisory