Description
WordPress before 5.2.4 has a Server Side Request Forgery (SSRF) vulnerability because URL validation does not consider the interpretation of a name as a series of hex characters.
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 | 5.2.4+dfsg1-1 | — |
| Debian 13 | wordpress | 5.2.4+dfsg1-1 | — |
| Debian 12 | wordpress | 5.2.4+dfsg1-1 | — |
| Debian 10 | wordpress | 5.0.4+dfsg1-1+deb10u1 | DSA-4599-1 |
| Debian 8 | wordpress | 4.1.28+dfsg-0+deb8u1 | DLA-1980-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wordpress | No fix yet | — |
| Ubuntu 16.04 LTS | wordpress | No fix yet | — |
Advisories 2
- DSA-4599-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1980-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
- https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
- https://core.trac.wordpress.org/changeset/46475
- https://github.com/WordPress/WordPress/commit/608d39faed63ea212b6c6cdf9fe2bef92e2120ea
- https://wpvulndb.com/vulnerabilities/9912
- [debian-lts-announce] 20191105 [SECURITY] [DLA 1980-1] wordpress security update mailing-list
- 20200108 [SECURITY] [DSA 4599-1] wordpress security update mailing-list
- DSA-4599 vendor-advisory
- DSA-4677 vendor-advisory