CVE-2026-10283: Bottelet DaybydayCRM Authentication Bypass in Settings Handler

Technical summary

CVE-2026-10283 is an authentication bypass flaw in Bottelet DaybydayCRM affecting versions through 2.2.1. The vulnerability resides in an unspecified function within the Setting Handler component. By performing authentication-bypass manipulation via the settings interface, an authenticated attacker can circumvent intended access controls. The attack vector is network-based with low complexity, and the attacker requires low privileges (already-authenticated user status). The flaw maps to CWE-287 (Improper Authentication) and CWE-306 (Missing Authentication for Critical Function), indicating the application fails to properly verify user permissions or legitimacy for certain operations.

Business impact

This vulnerability enables privilege escalation and lateral movement within a CRM deployment. An employee or guest with basic user access can modify settings to access administrative functions, customer data, or configuration that should remain restricted. In a multi-tenant or shared deployment, this could lead to data exposure, unauthorized changes to business records, or service disruption. Organizations relying on DaybydayCRM for customer relationship management face risk to data confidentiality, integrity, and system availability.

Affected systems

Bottelet DaybydayCRM versions up to and including 2.2.1 are confirmed vulnerable. Organizations running this CRM should immediately verify their deployed version. Verify against the vendor advisory whether patch versions 2.2.2 or later address this issue. No CVSS evidence indicates this is exploited in public campaigns at publication.

Exploitability

The attack requires network access and valid user credentials but involves low complexity and no user interaction. An attacker with legitimate login access—whether an internal user, contractor, or account holder—can perform settings manipulation to bypass authentication controls. The CVSS score of 6.3 (MEDIUM) reflects the moderate impact (confidentiality, integrity, and availability each partially compromised) balanced against the requirement for prior authentication. Exploitation does not appear to be documented in publicly disclosed attacks or proof-of-concept code as of the publication date.

Remediation

Apply a security patch from Bottelet to DaybydayCRM as soon as one is available for your version. Organizations should verify the fixed version number against the vendor advisory. As an interim measure, restrict CRM access to trusted networks, enforce strong password policies and multi-factor authentication where available, and audit user roles and permissions to reduce the number of accounts with elevated access. Monitor application logs for unusual setting modifications.

Patch guidance

Contact Bottelet for a patch version that addresses CVE-2026-10283. Verify that the patch version explicitly references this CVE or fixes authentication validation in the Setting Handler component. Apply patches in a test environment first to confirm functionality. After patching, review and re-validate user permission settings and audit access logs to detect any exploitation prior to the update. Establish a patching timeline consistent with your organization's vulnerability management policy; MEDIUM-severity flaws typically warrant patching within 30–60 days.

Detection guidance

Monitor DaybydayCRM application logs for authentication anomalies, failed permission checks, or unusual setting modifications from non-administrative accounts. Track requests to the Setting Handler component, especially those from users with lower privilege levels attempting to modify restricted settings. Implement network-based detection for unusual administrative function access from non-admin IP addresses or user agents. Correlate login events with subsequent setting changes to identify potential exploitation. Deploy a Web Application Firewall (WAF) rule to flag or block suspicious manipulation of authentication or authorization parameters in the application's settings endpoints.

Why prioritize this

Although CVSS-rated MEDIUM, this vulnerability warrants timely attention because it enables privilege escalation in a business-critical application (CRM) and impacts data confidentiality. The low attack complexity and network accessibility make it a practical target for insider threats or compromised accounts. Prioritize patching for instances accessible externally or used in multi-tenant environments where user isolation is critical. Organizations with strong access controls and limited external exposure can apply patches within standard maintenance windows; those with public-facing CRM deployments should expedite patching.

Risk score, explained

CVE-2026-10283 scores 6.3 MEDIUM under CVSS 3.1 because the vulnerability requires prior authentication (PR:L) but bypasses additional authentication controls (CWE-287, CWE-306). The attack vector is network-based (AV:N) with low complexity (AC:L) and no user interaction required (UI:N). Impact is partial across confidentiality, integrity, and availability (C:L, I:L, A:L), making it moderately severe. The score does not elevate to HIGH because exploitation demands initial valid credentials and produces partial rather than total compromise. This remains a material risk requiring prompt patching.

Frequently asked questions