CVE-2022-29408

Advanced Contact form 7 DB <= 1.8.7 - Stored Cross-Site Scripting

2022-04-21 14:19

Strategic Overview

Status: Patched in 1.8.8
Affected Plugin: Advanced Contact form 7 DB
Affected Version: <= 1.8.7
CVSS: 6.1Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2022-29408

View all Advanced Contact form 7 DB vulnerabilities

At a glance

CVE-2022-29408 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Advanced Contact form 7 DB WordPress plugin, affecting versions <= 1.8.7. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.8.8; sites on affected versions should update now. Disclosed April 2022, reported by R3N0.

Vulnerability Overview

Persistent Cross-Site Scripting (XSS) vulnerability in Vsourz Digital's Advanced Contact form 7 DB plugin <= 1.8.7 at WordPress.

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 privileges on the target site.

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

Reaching this weakness in Advanced Contact form 7 DB <= 1.8.7 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 Advanced Contact form 7 DB the fix is 1.8.8: builds <= 1.8.7 are affected, anything from 1.8.8 onward is not.

Remediation

Update to version 1.8.8, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Advanced Contact form 7 DB: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Advanced Contact form 7 DB 1.8.8 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-29408 https://www.wordfence.com/threat-intel/vulnerabilities/id/4598202a-f883-44c9-83bf-e8b72e418e3a https://nvd.nist.gov/vuln/detail/CVE-2022-29408

Related records

Other vulnerabilities in Advanced Contact form 7 DB

CVSS Vector

6.1

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

Base

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

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