CVE-2022-23979

Ultimate Reviews <= 3.0.15 - Authenticated Stored Cross-Site Scripting

2022-01-06 00:00

Strategic Overview

Status: Patched in 3.0.16
Affected Plugin: Ultimate Reviews
Affected Version: <= 3.0.15
CVSS: 4.8Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2022-23979

View all Ultimate Reviews vulnerabilities

At a glance

CVE-2022-23979 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Ultimate Reviews WordPress plugin, affecting versions <= 3.0.15. It carries a CVSS score of 4.8 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 3.0.16; sites on affected versions should update now. Disclosed January 2022, reported by Ngo Van Thien.

Vulnerability Overview

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability discovered in Ultimate Reviews WordPress plugin (versions <= 3.0.15).

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 Ultimate Reviews <= 3.0.15 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 Ultimate Reviews the fix is 3.0.16: builds <= 3.0.15 are affected, anything from 3.0.16 onward is not.

Remediation

Update to version 3.0.16, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Ultimate Reviews: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Ultimate Reviews 3.0.16 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-23979 https://www.wordfence.com/threat-intel/vulnerabilities/id/2e889182-f02f-4b6b-bb98-357fadae3dc1 https://nvd.nist.gov/vuln/detail/CVE-2022-23979

Related records

Same weakness class

Other vulnerabilities in Ultimate Reviews

CVSS Vector

4.8

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

Base

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

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