CVE-2023-40678

Simple URLs <= 117 - Missing Authorization via AJAX actions

2023-08-21 00:00

Strategic Overview

Status: Patched in 118
Affected Plugin: Lasso Lite – Affiliate Link Manager & Product Displays
Affected Version: <= 117
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2023-40678

View all Lasso Lite – Affiliate Link Manager & Product Displays vulnerabilities

At a glance

CVE-2023-40678 is a medium-severity Missing Authorization vulnerability in the Lasso Lite WordPress plugin, affecting versions <= 117. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 118; sites on affected versions should update now. Disclosed August 2023, reported by Rafshanzani Suhada.

Vulnerability Overview

The Simple URLs plugin for WordPress is vulnerable to unauthorized utilization of AJAX functionality due to a missing capability check on its AJAX handler functions in versions up to, and including, 117. This makes it possible for authenticated attackers, with subscriber-level access and above, to invoke those functions and change plugin behavior and settings.

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-862: Missing Authorization

Reaching this weakness in Lasso Lite <= 117 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Lasso Lite the fix is 118: builds <= 117 are affected, anything from 118 onward is not.

Remediation

Update to version 118, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Lasso Lite 118 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-40678 https://www.wordfence.com/threat-intel/vulnerabilities/id/118e1a8c-a638-4571-9ce9-cf2cba4b9b06 https://nvd.nist.gov/vuln/detail/CVE-2023-40678

Related records

Other vulnerabilities in Lasso Lite – Affiliate Link Manager & Product Displays

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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/