EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-91072
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-30 06:17:09 UTC
Updated2026-09-30 16:28:31 UTC
DescriptionThe EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.

Risk And Classification

Primary CVSS: v3.1 4.4 MEDIUM from ADP

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

Problem Types: CWE-73 | CWE-73 External Control of File Name or Path | CWE-73 CWE-73 External Control of File Name or Path

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown EWWW Image Optimizer affected 8.8.0 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732 [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Karthik Ramakrishnan (en)

CNA: WPScan (en)

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