CVE-2026-4278 | specialk Simple Download Counter Plugin up to 2.3 on WordPress Shortcode text/cat cross site scripting

VDB-353546 · CVE-2026-4278 · GCVE-0-2026-4278 SPECIALK SIMPLE DOWNLOAD COUNTER PLUGIN UP TO 2.3 ON WORDPRESS SHORTCODE TEXT/CAT CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.9 $0-$5k 2.25+ Summaryinfo A vulnerability was found in specialk Simple Download Counter Plugin up to 2.3 on WordPress and classified as problematic. The affected element is an unknown function of the component Shortcode Handler. Such manipulation of the argument text/cat leads to cross site scripting. This vulnerability is documented as CVE-2026-4278. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in specialk Simple Download Counter Plugin up to 2.3 on WordPress. It has been rated as problematic. Affected by this issue is an unknown code of the component Shortcode Handler. The manipulation of the argument text/cat with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes: The Simple Download Counter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sdc_menu' shortcode in all versions up to, and including, 2.3. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes, specifically the 'text' and 'cat' attributes. The 'text' attribute is output directly into HTML content on line 159 without any escaping (e.g., esc_html()). The 'cat' attribute is used unescaped in HTML class attributes on lines 135 and 157 without esc_attr(). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The weakness was released by Djaidja Moundjid. The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-4278 since 03/16/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project. Upgrading to version 2.3 eliminates this vulnerability. Productinfo Type WordPress Plugin Vendor specialk Name Simple Download Counter Plugin Version 2.0 2.1 2.2 2.3 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.9 VulDB Meta Temp Score: 4.9 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.4 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: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 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: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Simple Download Counter Plugin 2.3 Timelineinfo 03/16/2026 CVE reserved 03/26/2026 +10 days Advisory disclosed 03/26/2026 +0 days VulDB entry created 03/26/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Djaidja Moundjid Status: Confirmed CVE: CVE-2026-4278 (🔒) GCVE (CVE): GCVE-0-2026-4278 GCVE (VulDB): GCVE-100-353546 Entryinfo Created: 03/26/2026 07:01 Changes: 03/26/2026 07:01 (68) Complete: 🔍 Cache ID: 99:A64:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸