WordPress security changelog
CRITICAL CVE-2015-8351 Deferred

Gwolle Gb: Filesystem traversal

Gwolle Gb is affected by filesystem traversal. Exposure depends on how the affected operation is made reachable by the site. A crafted path can escape the intended directory and reach files or directories elsewhere on the server.

CVE / CNA score 9.0 CVSS · cve@mitre.org
NVD score 9.0 CVSS 3.0 · nvd@nist.gov
Component
Gwolle Gb
Plugin slug
gwolle-gb
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Sep 11, 2017
Weakness
CWE-94 — Improper Control of Generation of Code ('Code Injection')

This CVE was published Sep 11, 2017 and is one of 3 known issues for this plugin.

Update, patch or deactivate.

Update Gwolle Gb to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

PHP remote file inclusion vulnerability in the Gwolle Guestbook plugin before 1.5.4 for WordPress, when allow_url_include is enabled, allows remote authenticated users to execute arbitrary PHP code via a URL in the abspath parameter to frontend/captcha/ajaxresponse.php. NOTE: this can also be leveraged to include and execute arbitrary local files via directory traversal sequences regardless of whether allow_url_include is enabled.

NVD vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary and upstream sources