CVE-2019-15870

CarSpot – Dealership Wordpress Classified Theme < 2.1.7 - Authenticated Stored Cross-Site Scripting

2019-04-18 00:00

Strategic Overview

Status: Patched in 2.1.7
Affected Theme: CarSpot – Dealership Wordpress Classified Theme
Affected Version: < 2.1.7
CVSS: 6.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2019-15870

View all CarSpot – Dealership Wordpress Classified Theme vulnerabilities

At a glance

CVE-2019-15870 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the CarSpot WordPress theme, affecting versions < 2.1.7. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 2.1.7; sites on affected versions should update now. Disclosed April 2019, reported by R3N0.

Vulnerability Overview

The CarSpot theme before 2.1.7 for WordPress has stored XSS via the Phone Number field.

Technical Analysis

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

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

Reaching this weakness in CarSpot < 2.1.7 takes any authenticated account. 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. For CarSpot the fix is 2.1.7: builds < 2.1.7 are affected, anything from 2.1.7 onward is not.

Remediation

Update to version 2.1.7, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to CarSpot: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: CarSpot 2.1.7 closes this, and updating the theme is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-15870 https://www.wordfence.com/threat-intel/vulnerabilities/id/1ac58649-4c1a-4c2c-a94b-a3cf08ecb4df https://nvd.nist.gov/vuln/detail/CVE-2019-15870

Related records

Same weakness class

Other vulnerabilities in CarSpot – Dealership Wordpress Classified Theme

CVSS Vector

6.4

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

Base

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

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