4.3

CVE-2026-27056: stellarwp ithemes sync Missing Authorization

CVSS: 4.3v3.1MediumDeferred
Published 19-02-2026Last modified 28-04-2026
Open JSON

Vulnerability summary

CVE-2026-27056 is a medium (CVSS 4.3) Missing Authorization vulnerability in stellarwp ithemes sync. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.8% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.14 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-02-2026
    PublishedVulnerability first disclosed.
  2. 28-04-2026
    Last modifiedVulnerability information updated.

Description

Missing Authorization vulnerability in StellarWP iThemes Sync ithemes-sync allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects iThemes Sync: from n/a through <= 3.2.8.

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

+0.14 pp

From 0.16% on 19-09-2026

19-09-202619-10-2026
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

Stellarwp1 product
Wordpress1 product
  • ithemes-sync≤ 3.2.8 (fixed in 3.2.9)

2 vendors · 2 products

References

2 links