CVE-2026-6443 | essentialplugin Accordion and Accordion Slider Plugin 1.4.6 on WordPress malicious code

VDB-358030 · CVE-2026-6443 · GCVE-0-2026-6443 ESSENTIALPLUGIN ACCORDION AND ACCORDION SLIDER PLUGIN 1.4.6 ON WORDPRESS MALICIOUS CODE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.4 $0-$5k 1.75+ Summaryinfo A vulnerability categorized as critical has been discovered in essentialplugin Accordion and Accordion Slider Plugin 1.4.6 on WordPress. This affects an unknown part. Executing a manipulation can lead to malicious code. This vulnerability is registered as CVE-2026-6443. It is possible to launch the attack remotely. No exploit is available. Detailsinfo A vulnerability classified as critical was found in essentialplugin Accordion and Accordion Slider Plugin 1.4.6 on WordPress. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a malicious code vulnerability. The CWE definition for the vulnerability is CWE-506. The product contains code that appears to be malicious in nature. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: The Accordion and Accordion Slider plugin for WordPress is vulnerable to an injected backdoor in version 1.4.6. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam into the affected sites. The weakness was published by Eu Joe Chegne and Damien. The advisory is available at wordfence.com. This vulnerability was named CVE-2026-6443 since 04/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/17/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type WordPress Plugin Vendor essentialplugin Name Accordion and Accordion Slider Plugin Version 1.4.6 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 8.5 VulDB Meta Temp Score: 8.4 VulDB Base Score: 7.3 VulDB Temp Score: 7.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.8 CNA Vector (Wordfence): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Malicious code CWE: CWE-506 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/16/2026 CVE reserved 04/17/2026 +1 days Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Eu Joe Chegne, Damien Status: Not defined CVE: CVE-2026-6443 (🔒) GCVE (CVE): GCVE-0-2026-6443 GCVE (VulDB): GCVE-100-358030 Entryinfo Created: 04/17/2026 09:07 Changes: 04/17/2026 09:07 (63) Complete: 🔍 Cache ID: 99:556:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸