CVE-2022-2557

Team - WordPress Team Member Showcase Plugin <= 4.1.1 - Directory Traversal to Arbitrary File Read/Deletion

2022-07-29 00:00

Strategic Overview

Status: Patched in 4.1.2
Affected Plugin: Team – Team Members Showcase Plugin
Affected Version: <= 4.1.1
CVSS: 7.5High
Weakness type: CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE: CVE-2022-2557

View all Team – Team Members Showcase Plugin vulnerabilities

At a glance

CVE-2022-2557 is a high-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Team WordPress plugin, affecting versions <= 4.1.1. It carries a CVSS score of 7.5 (reachable over the network; high confidentiality, integrity, availability impact). The issue is fixed in version 4.1.2; sites on affected versions should update now. Disclosed July 2022, reported by Nhật Nam.

Vulnerability Overview

The Team - WordPress Team Member Showcase Plugin for WordPress is vulnerable to directory traversal via the 'resources/download.php' file. This allows authenticated attackers to download a copy of any file on the server, and then delete the original from the server, granted the 'wp-content/plugins/tlp-team/temp' folder exists. This folder is not currently generated by default in the free version of the plugin, but in cases where it exists it is possible for an attacker to completely take over a site by deleting wp-config.php and reinstalling WordPress, while simultaneously obtaining credentials to the existing database.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Reaching this weakness in Team <= 4.1.1 takes a caller who can reach the endpoint. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For Team the fix is 4.1.2: builds <= 4.1.1 are affected, anything from 4.1.2 onward is not.

Remediation

Update to version 4.1.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Team: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Team 4.1.2 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-2557 https://www.wordfence.com/threat-intel/vulnerabilities/id/497cfc87-85ac-41d0-aeea-63c5fc64db0d https://nvd.nist.gov/vuln/detail/CVE-2022-2557

Related records

Other vulnerabilities in Team – Team Members Showcase Plugin

CVSS Vector

7.5

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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