CVE catalog
CVE-2023-5561
wordpress: CVE-2023-5561
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 4.33% · Oct 25, 2026
WordPress does not properly restrict which user fields are searchable via the REST API, allowing unauthenticated attackers to discern the email addresses of users who have published public posts on an affected website via an Oracle style attack
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | wordpress | sid | 7.1.3+dfsg1-1 | fixed |
| Debian | wordpress | forky | 7.1.3+dfsg1-1 | fixed |
| Debian | wordpress | trixie | 6.8.7+dfsg1-0+deb13u1 | fixed |
| Debian | wordpress | trixie-security | 6.8.10+dfsg1-0+deb13u1 | fixed |
| Debian | wordpress | bookworm | 6.1.9+dfsg1-0+deb12u1 | fixed |
| Debian | wordpress | bookworm-security | 6.1.9+dfsg1-0+deb12u1 | fixed |
| Ubuntu | wordpress | 16.04 | 4.3+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 16.04 | 4.3.1+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 16.04 | 4.4+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 16.04 | 4.4.1+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 16.04 | 4.4.2+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 16.04 | 4.4.2+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | wordpress | 18.04 | 4.8.2+dfsg-2 | vulnerable |
| Ubuntu | wordpress | 18.04 | 4.8.3+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 18.04 | 4.9.1+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 18.04 | 4.9.2+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 18.04 | 4.9.4+dfsg-1 | vulnerable |
| Ubuntu | wordpress | 18.04 | 4.9.5+dfsg1-1 | vulnerable |
| Ubuntu | wordpress | 20.04 | 5.2.2+dfsg1-1 | vulnerable |
| Ubuntu | wordpress | 20.04 | 5.2.4+dfsg1-1 | vulnerable |
| Ubuntu | wordpress | 20.04 | 5.3.2+dfsg1-1 | vulnerable |
| Ubuntu | wordpress | 20.04 | 5.3.2+dfsg1-1ubuntu1 | vulnerable |
| Ubuntu | wordpress | 22.04 | 5.7.1+dfsg1-2ubuntu1 | vulnerable |
| Ubuntu | wordpress | 22.04 | 5.8.1+dfsg1-2ubuntu1 | vulnerable |
| Ubuntu | wordpress | 22.04 | 5.8.2+dfsg1-1ubuntu1 | vulnerable |
| Ubuntu | wordpress | 22.04 | 5.8.3+dfsg1-1ubuntu1 | vulnerable |
| Ubuntu | wordpress | 22.04 | 5.8.3+dfsg1-1ubuntu1.1 | vulnerable |
| Ubuntu | wordpress | 24.04 | 6.2+dfsg1-1ubuntu1 | vulnerable |
| Ubuntu | wordpress | 24.04 | 6.4.3+dfsg1-1ubuntu1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | wordpress | source | sid | 6.3.2+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | wordpress | source | forky | 6.3.2+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | wordpress | source | trixie | 6.3.2+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | wordpress | source | bookworm | 6.1.6+dfsg1-0+deb12u1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-5561]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-5561]
- [https://security-tracker.debian.org/tracker/CVE-2023-5561]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2640.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]