Sucuri Security Plugin up to 2.7.3 on WordPress src/integrity.lib.php pageIntegritySubmission sucuriscan_integrity path traversal

Summaryinfo

A vulnerability described as problematic has been identified in Sucuri Security Plugin up to 2.7.3. This vulnerability affects the function pageIntegritySubmission of the file src/integrity.lib.php. Such manipulation of the argument sucuriscan_integrity leads to path traversal. This vulnerability is documented as CVE-2026-73033. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Sucuri Security Plugin up to 2.7.3 and classified as problematic. Affected by this issue is the function pageIntegritySubmission of the file src/integrity.lib.php. The manipulation of the argument sucuriscan_integrity with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Sucuri Security WordPress plugin through version 2.7.3 contains a path traversal vulnerability in the pageIntegritySubmission() method in src/integrity.lib.php that allows authenticated administrators to delete arbitrary files by supplying directory traversal sequences in the sucuriscan_integrity parameter. Attackers can manipulate the unsanitized file path concatenated with ABSPATH to traverse outside the WordPress installation directory and invoke unlink() on sensitive files such as wp-config.php and .htaccess, causing site outage or enabling malicious reinstallation.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-73033 since 08/10/2026. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/10/2026). The MITRE ATT&CK project declares the attack technique as T1006.

By approaching the search of inurl:src/integrity.lib.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• WordPress Plugin

Vendor

• Sucuri

Name

• Security Plugin

Version

• 2.7.0
• 2.7.1
• 2.7.2
• 2.7.3

CPE 2.3info

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• 🔒
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CPE 2.2info

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