CVE-2017-1002011

Image Gallery with Slideshow Plugin <= 1.5.2 - Stored Cross-Site Scripting

2017-04-01 00:00

Strategic Overview

Status: Unpatched
Affected Plugin: Image Gallery with Slideshow Plugin
Affected Version: <= 1.5.2
CVSS: 5.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2017-1002011

View all Image Gallery with Slideshow Plugin vulnerabilities

At a glance

CVE-2017-1002011 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Image Gallery with Slideshow Plugin WordPress plugin, affecting versions <= 1.5.2. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). No fixed release has been reported yet; treat installations running this software as exposed. Disclosed April 2017, reported by Larry W. Cashdollar.

Vulnerability Overview

Vulnerability in wordpress plugin image-gallery-with-slideshow v1.5.2, There is a stored XSS vulnerability via the $value->gallery_name and $value->gallery_description where anyone with privileges to modify or add galleries/images and inject javascript into the database.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Image Gallery with Slideshow Plugin <= 1.5.2 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. No fixed build of this plugin is recorded for Image Gallery with Slideshow Plugin yet, so installs running <= 1.5.2 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to Image Gallery with Slideshow Plugin: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2017-1002011 https://www.wordfence.com/threat-intel/vulnerabilities/id/b7dac90c-d84a-4e93-a4c0-baaa5fee11c9 https://nvd.nist.gov/vuln/detail/CVE-2017-1002011

Related records

CVSS Vector

5.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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