CVE-2019-19542

ListingPro - WordPress Directory & Listing Theme < 2.0.14.5 - Stored Cross-Site Scripting

2019-11-29 00:00

Strategic Overview

Status: Patched in 2.0.14.5
Affected Theme: ListingPro - WordPress Directory & Listing Theme
Affected Version: <= 2.0.14.4
CVSS: 5.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2019-19542

View all ListingPro - WordPress Directory & Listing Theme vulnerabilities

At a glance

CVE-2019-19542 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the ListingPro - WordPress Directory & Listing Theme WordPress theme, affecting versions <= 2.0.14.4. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). The issue is fixed in version 2.0.14.5; sites on affected versions should update now. Disclosed November 2019, reported by SUBVΞRSΛ.

Vulnerability Overview

The ListingPro theme before v2.0.14.5 for WordPress has Persistent XSS via the Good For field on the new listing submit page.

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 ListingPro - WordPress Directory & Listing Theme <= 2.0.14.4 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. For ListingPro - WordPress Directory & Listing Theme the fix is 2.0.14.5: builds <= 2.0.14.4 are affected, anything from 2.0.14.5 onward is not.

Remediation

Update to version 2.0.14.5, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to ListingPro - WordPress Directory & Listing Theme: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: ListingPro - WordPress Directory & Listing Theme 2.0.14.5 closes this, and updating the theme is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-19542 https://www.wordfence.com/threat-intel/vulnerabilities/id/4af4b971-7304-47c9-8d01-eae36e40c45c https://nvd.nist.gov/vuln/detail/CVE-2019-19542

Related records

Same weakness class

Other vulnerabilities in ListingPro - WordPress Directory & Listing Theme

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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