CVE-2015-8351

Gwolle Guestbook vulnerability

CVSS

9.0

EPSS

37.0%

EPSS pct

98th

Exploited

No known

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.

Affected vendor

Gwolle Guestbook Project

Affected product

Gwolle Guestbook

CVSS vector

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

Weakness type (CWE)

CWE-94 — Code Injection

Published

2017-09-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 37.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2015-8351

Confirm whether Gwolle Guestbook Project Gwolle Guestbook is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2015-8351.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-8351

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-8351 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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