CVE-2026-19223: unknown smush Code Injection
CVSS: 7.2v3.1HighDeferred
Published 27-08-2026Last modified 27-08-2026
Vulnerability summary
CVE-2026-19223 is a high (CVSS 7.2) Code Injection vulnerability in unknown smush. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 28% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 4.3.2.
CVSS score
7.2/10
010
High · v3.1 (CVE.org)EPSS score
0.36%
0%100%
Low · -0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 27-08-2026PublishedVulnerability first disclosed.
- 27-08-2026Last modifiedVulnerability information updated.
Description
The Smush WordPress plugin before 4.3.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.2Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- NVDNIST7.2HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- wordfenceSource7.2HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.36%
Chance of exploitation in the next 30 days
Percentile
28%
Versus all other CVEs
30-day change
-0.01 pp
From 0.37% on 18-09-2026
18-09-202618-10-2026
EPSS score0.36%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Unknown1 product
- smush≥ 3.22.1, < 4.3.2
Wordpress1 product
- wp-smushit< 4.3.2
2 vendors · 2 products