CVE-2026-81285: wordpress wp-smushit
CVSS: 7.5v3.1HighDeferred
Published 28-08-2026Last modified 28-08-2026
Vulnerability summary
CVE-2026-81285 is a high (CVSS 7.5) vulnerability in wordpress wp-smushit. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.5% of scored vulnerabilities. Fixed in 4.3.0.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.46%
0%100%
Low · +0.20 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 28-08-2026PublishedVulnerability first disclosed.
- 28-08-2026Last modifiedVulnerability information updated.
Description
Unauthenticated Denial of Service Attack in Smush Image Compression and Optimization <= 4.2.0 versions.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- wordfenceSource7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.46%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.20 pp
From 0.26% on 19-09-2026
19-09-202619-10-2026
EPSS score0.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
Affected systems
Wordpress1 product
- wp-smushit≤ 4.2.0 (fixed in 4.3.0)
Wpmu dev1 product
- smush image compression and optimization≥ n/a, ≤ 4.2.0
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry