CVE-2026-24565: 
WordPress vulnerability analysis and mitigation

CVE-2026-24565 is a Sensitive Data Exposure vulnerability (CWE-201: Insertion of Sensitive Information Into Sent Data) in the B Accordion WordPress plugin by bPlugins. It allows authenticated attackers with at least Contributor-level privileges to retrieve embedded sensitive data that should not be accessible to regular users. The vulnerability affects all versions of B Accordion up to and including 2.0.2, with version 2.0.3 containing the fix. It was reported on December 22, 2025, and publicly disclosed on January 21–23, 2026. The CVSS v3.1 base score is 6.5 (Medium) (Patchstack, NVD).

The vulnerability is classified as CWE-201 (Insertion of Sensitive Information Into Sent Data), meaning the plugin inadvertently includes sensitive data in responses sent to authenticated users who should not have access to it. Exploitation requires a network-accessible WordPress installation and a low-privilege authenticated account (Contributor or Developer level), with no user interaction required. The attack vector is network-based with low complexity, suggesting the sensitive data is exposed through standard plugin functionality — likely via AJAX handlers or REST API endpoints that fail to properly restrict the data returned to lower-privileged users. No public proof-of-concept code has been identified (Patchstack).

Successful exploitation results in a high confidentiality impact with no integrity or availability impact. An authenticated attacker with Contributor-level access could retrieve sensitive information embedded within the plugin's data responses — information that is normally restricted from regular users. This exposed data could potentially be leveraged to facilitate further attacks against the WordPress site or its users, such as privilege escalation or targeted phishing, though direct system compromise is not achievable through this vulnerability alone (Patchstack, NVD).

No public exploit code or active in-the-wild exploitation has been reported for CVE-2026-24565. The EPSS score is approximately 0.018% (0.000180), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Patchstack notes that while vulnerabilities of this class can be used in mass-exploit campaigns targeting WordPress sites, this specific issue is rated low priority and is considered unlikely to be exploited due to the authentication requirement (Patchstack).

1. Reconnaissance: Identify WordPress sites running the B Accordion plugin (version ≤ 2.0.2) using tools like WPScan or by checking /wp-content/plugins/b-accordion/ for plugin presence.
2. Authentication: Obtain or register a low-privilege WordPress account with at least Contributor-level access on the target site.
3. Trigger data exposure: Interact with the plugin's functionality (e.g., via AJAX requests or REST API endpoints exposed by the plugin) while authenticated, sending crafted requests that cause the plugin to return sensitive embedded data in its response.
4. Extract sensitive data: Parse the response to retrieve the sensitive information that is improperly included, which may include configuration details, user data, or other restricted content embedded in the plugin's output.
5. Leverage for further attacks: Use the retrieved sensitive data to inform additional attack steps, such as privilege escalation or targeted exploitation of other vulnerabilities (Patchstack).

• Logs: WordPress access logs showing repeated authenticated requests to plugin-specific AJAX endpoints (e.g., wp-admin/admin-ajax.php with B Accordion-related action parameters) from Contributor-level accounts, particularly in rapid succession or from unusual IP addresses.
• Network: Unusual outbound data volumes from the WordPress server following authenticated plugin interactions; requests to B Accordion endpoints from IP addresses not associated with known site contributors.
• File System: No specific file-based IOCs are expected for this vulnerability type, as it is a data exposure issue rather than a code execution or file write vulnerability.

The vendor has released version 2.0.3 of the B Accordion plugin, which resolves this vulnerability. Site administrators should update the plugin immediately via the WordPress admin dashboard or by downloading the patched version from the WordPress plugin repository. As a temporary workaround if immediate updating is not possible, restricting Contributor-level user registration or disabling the B Accordion plugin until patching is feasible can reduce exposure. Patchstack users can enable auto-update for vulnerable plugins to automate remediation (Patchstack).

The vulnerability was discovered and reported by security researcher theviper17 through Patchstack's responsible disclosure process on December 22, 2025. Patchstack classified it as low priority with unlikely exploitation potential. No significant broader media coverage, vendor statements beyond the patch release, or notable community discussion has been identified for this vulnerability.