CVE-2022-0590

BulletProof Security <= 5.7 - Admin+ Stored Cross-Site Scripting

2022-02-22 00:00

Strategic Overview

Status: Patched in 5.8
Affected Plugin: BulletProof Security
Affected Version: < 5.8
CVSS: 5.5Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2022-0590

View all BulletProof Security vulnerabilities

At a glance

CVE-2022-0590 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the BulletProof Security WordPress plugin, affecting versions < 5.8. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). The issue is fixed in version 5.8; sites on affected versions should update now. Disclosed February 2022, reported by Kévin Mosbahi (Mika).

Vulnerability Overview

The BulletProof Security WordPress plugin before 5.8 does not sanitise and escape some of its settings, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

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 BulletProof Security < 5.8 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 BulletProof Security the fix is 5.8: builds < 5.8 are affected, anything from 5.8 onward is not.

Remediation

Update to version 5.8, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to BulletProof Security: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: BulletProof Security 5.8 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-0590 https://www.wordfence.com/threat-intel/vulnerabilities/id/bcbb6614-09fc-4f41-81f7-d70aa92101bf https://nvd.nist.gov/vuln/detail/CVE-2022-0590

Related records

Same weakness class

Other vulnerabilities in BulletProof Security

CVSS Vector

5.5

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

Base

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

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