5.3

CVE-2023-5561: wordpress

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2023-5561DEBIAN-CVE-2023-5561
Published 16-10-2023Last modified 23-04-2025
Open JSON

Vulnerability summary

CVE-2023-5561 is a medium (CVSS 5.3) vulnerability in wordpress. EPSS estimates a 4.33% chance of exploitation in the next 30 days, higher than 91% of scored vulnerabilities. 2 public exploits are recorded. Fixed in 4.7.27.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
4.33%
0%100%
Low · +0.47 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 2
DLA-3658-1DSA-5685-1

Timeline

  1. 16-10-2023
    PublishedVulnerability first disclosed.
  2. 23-04-2025
    Last modifiedVulnerability information updated.

Description

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 metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

4.33%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

+0.47 pp

From 3.86% on 19-09-2026

19-09-202619-10-2026
EPSS score
4.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Wordpress2 products
  • wordpress≥ 4.7, ≤ 4.7.26 (fixed in 4.7.27) | ≥ 4.8, ≤ 4.8.22 (fixed in 4.7.27) | ≥ 4.9, ≤ 4.9.23 (fixed in 4.7.27) | ≥ 5.0, ≤ 5.0.19 (fixed in 4.7.27) | ≥ 5.1, ≤ 5.1.16 (fixed in 4.7.27) | ≥ 5.2, ≤ 5.2.18 (fixed in 4.7.27) | ≥ 5.3, ≤ 5.3.15 (fixed in 4.7.27) | ≥ 5.4, ≤ 5.4.13 (fixed in 4.7.27) | ≥ 5.5, ≤ 5.5.12 (fixed in 4.7.27) | ≥ 5.6, ≤ 5.6.11 (fixed in 4.7.27) | ≥ 5.7, ≤ 5.7.9 (fixed in 4.7.27) | ≥ 5.8, ≤ 5.8.7 (fixed in 4.7.27) | ≥ 5.9, ≤ 5.9.7 (fixed in 4.7.27) | ≥ 6.0, ≤ 6.0.5 (fixed in 4.7.27) | ≥ 6.1, ≤ 6.1.3 (fixed in 4.7.27) | ≥ 6.2, ≤ 6.2.2 (fixed in 4.7.27) | ≥ 6.3, ≤ 6.3.1 (fixed in 4.7.27)
  • wordpress≥ 6.3.0, < 6.3.2 | ≥ 6.2.0, < 6.2.3 | ≥ 6.1.0, < 6.1.4 | ≥ 6.0.0, < 6.0.6 | ≥ 5.9.0, < 5.9.8 | ≥ 5.8.0, < 5.8.8 | ≥ 5.7.0, < 5.7.10 | ≥ 5.6.0, < 5.6.12 | ≥ 5.5.0, < 5.5.13 | ≥ 5.4.0, < 5.4.14 | ≥ 5.3.0, < 5.3.16 | ≥ 5.2.0, < 5.2.19 | ≥ 5.0.0, < 5.0.20 | ≥ 4.9.0, < 4.9.24 | ≥ 4.8.0, < 4.8.23 | ≥ 4.7.0, < 4.7.27 | ≥ 4.7, < 4.7.27 | ≥ 4.8, < 4.8.23 | ≥ 4.9, < 4.9.24 | ≥ 5.0, < 5.0.20 | ≥ 5.1, < 5.1.17 | ≥ 5.2, < 5.2.19 | ≥ 5.3, < 5.3.16 | ≥ 5.4, < 5.4.14 | ≥ 5.5, < 5.5.13 | ≥ 5.6, < 5.6.12 | ≥ 5.7, < 5.7.10 | ≥ 5.8, < 5.8.8 | ≥ 5.9, < 5.9.8 | ≥ 6.0, < 6.0.6 | ≥ 6.1, < 6.1.4 | ≥ 6.2, < 6.2.3 | ≥ 6.3, < 6.3.2
Debian1 product
  • wordpress< 6.1.6+dfsg1-0+deb12u1 | < 6.3.2+dfsg1-1
Ubuntu1 product
  • wordpressAll versions (No fix recorded)

3 vendors · 4 products

References

8 links