CVE-2022-46821

Emails & Newsletters with Jackmail <= 1.2.22 - Authenticated (Subscriber+) CSV Injecton

2023-04-28 00:00

Strategic Overview

Status: Unpatched
Affected Plugin: Emails & Newsletters with Jackmail
Affected Version: <= 1.2.22
CVSS: 6.0Medium
Weakness type: CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
CVE: CVE-2022-46821

View all Emails & Newsletters with Jackmail vulnerabilities

At a glance

CVE-2022-46821 is a medium-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the Emails & Newsletters with Jackmail WordPress plugin, affecting versions <= 1.2.22. It carries a CVSS score of 6.0 (reachable over the network). Exploitation requires an authenticated account at Subscriber level or above. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed April 2023, reported by Kévin Mosbahi (Mika).

Vulnerability Overview

The Emails & Newsletters with Jackmail plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 1.2.22. This allows authenticated attackers, with subscriber-level permissions and above, to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user.

CWE-1236: Improper Neutralization of Formula Elements in a CSV File

The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-46821 https://www.wordfence.com/threat-intel/vulnerabilities/id/084a209f-c67b-4df9-9f4b-c537ea065a50 https://nvd.nist.gov/vuln/detail/CVE-2022-46821

CVSS Vector

6.0

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/