WP-Optimize – Cache, Compress images, Minify &…: Improper Limitation of a Pathname to a Restricted Directory
CVE-2026-7252 is a high-severity improper limitation of a pathname to a restricted directory vulnerability in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance from Davidanderson, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance versions: 4.5.2 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.95% chance of exploitation within 30 days, higher than 62% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Davidanderson | WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance | 4.5.2 and earlier | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H. Scored by CNA (wordfence.com).
Official description
The WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the unscheduled_original_file_deletion function in all versions up to, and including, 4.5.2 This makes it possible for authenticated attackers, with author-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). This is possible because 'original-file' is a public (non-protected) meta key — it does not begin with an underscore — allowing Authors to freely create or modify it on their own attachment posts via the standard Edit Media form or the REST API.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Limitation of a Pathname to a Restricted Directory
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
How developers prevent this class of flaw
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth.
More Improper Limitation of a Pathname to a Restricted Directory vulnerabilities (CWE-22)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
- plugins.trac.wordpress.org/browser/wp-optimize/tags/4.5.2/includes/class-updraft-smush-manager.php#L1645
- plugins.trac.wordpress.org/browser/wp-optimize/tags/4.5.2/includes/class-updraft-smush-manager.php#L1649
- plugins.trac.wordpress.org/browser/wp-optimize/tags/4.5.2/includes/class-updraft-smush-manager.php#L81
- plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-updraft-smush-manager.php#L1645
- plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-updraft-smush-manager.php#L1649
- plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-updraft-smush-manager.php#L81
- plugins.trac.wordpress.org/changeset/3518513/wp-optimize/trunk/includes/class-updraft-smush-manager.php
- plugins.trac.wordpress.org/changeset?old_path=%2Fwp-optimize/tags/4.5.2&new_path=%2Fwp-optimize/tags/4.5.3
- wordfence.com/threat-intel/vulnerabilities/id/cc815ef2-dd02-4faa-b202-dd1552f889db?source=cve
Recent Improper Limitation of a Pathname to a Restricted Directory vulnerabilities
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- 9.4 Critical severity
- 9.1 Critical severity
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