Is CVE-2026-91072 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-91072 being exploited in the wild.

How severe is CVE-2026-91072?

Informational severity, published 30 September 2026.

Which products and versions are affected?

Optimole EWWW Image Optimizer before 8.8.0.

Is there a fix for CVE-2026-91072?

A patch was published on 2026-09-28: version 8.8.0 fixes the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-91072 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-91072?

Check whether you run Optimole EWWW Image Optimizer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-91072: EWWW Image Optimizer unrestricted path traversal in WebP migration

CVE-2026-91072 · Severity: info · Published 2026-09-30

EWWW Image Optimizer is a WordPress plugin that optimizes and converts images for websites. An attacker with administrator access can delete or rename WebP image files outside the intended upload directory, potentially affecting other sites on a WordPress multisite network that they do not have permission to access. This could result in defacement or denial of service.

Vendors: Optimole.

Quick answers

Is CVE-2026-91072 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-91072 being exploited in the wild.
How severe is CVE-2026-91072?: Informational severity, published 30 September 2026.
Which products and versions are affected?: Optimole EWWW Image Optimizer before 8.8.0.
Is there a fix for CVE-2026-91072?: A patch was published on 2026-09-28: version 8.8.0 fixes the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-91072 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-91072?: Check whether you run Optimole EWWW Image Optimizer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The WebP-derivative file migration routine fails to validate and restrict file operations to the current site's uploads directory, allowing path traversal. An authenticated administrator can exploit this via unrestricted file path parameters to rename or delete WebP files outside the intended scope. The vulnerability was fixed in version 8.8.0.

Affected products

Optimole EWWW Image Optimizer before 8.8.0

Timeline

2026-09-28: disclosed
2026-09-28: patched: version 8.8.0 fixes the issue

References

https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732/

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