5.3

CVE-2026-73403: wordpress user-registration Missing Authorization

CVSS: 5.3v3.1MediumDeferred
Published 13-08-2026Last modified 13-08-2026
Open JSON

Vulnerability summary

CVE-2026-73403 is a medium (CVSS 5.3) Missing Authorization vulnerability in wordpress user-registration. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.7% of scored vulnerabilities. Fixed in 5.2.7.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-08-2026
    PublishedVulnerability first disclosed.
  2. 13-08-2026
    Last modifiedVulnerability information updated.

Description

Unauthenticated Broken Access Control in User Registration <= 5.2.6 versions.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

+0.09 pp

From 0.21% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wordpress1 product
  • user-registration≤ 5.2.6 (fixed in 5.2.7)
Wpeverest1 product

2 vendors · 2 products

References

2 links