CVE-2023-5561

mediumpriority · track · 33EPSS 0.043 · 91 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

3 exploits · PoC

Likely / severe?

4.33% (91st) EPSS

CVSS 5.3 · medium

Is it mine?

71 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-26

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

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondaryexploitability 3.9 · impact 1.4

v3.15.2mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Fsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200US

exploits (3)

Public proof-of-concept and weaponised exploit code.

affected products (71)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
WordPress WordPress4.7.0 → 4.7.27enisa_euvdEU
WordPress WordPress4.8.0 → 4.8.23enisa_euvdEU
WordPress WordPress4.9.0 → 4.9.24enisa_euvdEU
WordPress WordPress5.0.0 → 5.0.20enisa_euvdEU
WordPress WordPress5.2.0 → 5.2.19enisa_euvdEU
WordPress WordPress5.3.0 → 5.3.16enisa_euvdEU
WordPress WordPress5.4.0 → 5.4.14enisa_euvdEU
WordPress WordPress5.5.0 → 5.5.13enisa_euvdEU
WordPress WordPress5.6.0 → 5.6.12enisa_euvdEU
WordPress WordPress5.7.0 → 5.7.10enisa_euvdEU
WordPress WordPress5.8.0 → 5.8.8enisa_euvdEU
WordPress WordPress5.9.0 → 5.9.8enisa_euvdEU
WordPress WordPress6.0.0 → 6.0.6enisa_euvdEU
WordPress WordPress6.1.0 → 6.1.4enisa_euvdEU
WordPress WordPress6.2.0 → 6.2.3enisa_euvdEU
WordPress WordPress6.3.0 → 6.3.2enisa_euvdEU
WordPress Foundation WordPress≤ 6.3.2fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU

showing 20 of 71

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2640WordPress: Mehrere SchwachstellenDeutsch2023-10-12csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in WordPress ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen oder einen Cross-Site-Script-Angriff durchzuführen.
BIT-wordpress-2023-5561WordPress < 6.3.2 - Unauthenticated Post Author Email Disclosure2024-03-06vendor · osvUS
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
BIT-wordpress-multisite-2023-5561WordPress < 6.3.2 - Unauthenticated Post Author Email Disclosure2024-03-06vendor · osvUS
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

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund NVD CVE.org MITRE

published 2023-10-16modified 2026-06-17

references (10)

External citations — patches, advisories, analysis.

scry

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