CVE-2026-0718 | wpxpo PostX Plugin up to 5.0.5 on WordPress ultp_shareCount_callback authorization (EUVD-2026-23201)

VDB-357906 · CVE-2026-0718 · EUVD-2026-23201 WPXPO POSTX PLUGIN UP TO 5.0.5 ON WORDPRESS ULTP_SHARECOUNT_CALLBACK AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.2 $0-$5k 5.29 Summaryinfo A vulnerability labeled as critical has been found in wpxpo PostX Plugin up to 5.0.5 on WordPress. Affected is the function ultp_shareCount_callback. The manipulation results in authorization. This vulnerability is identified as CVE-2026-0718. The attack can be executed remotely. There is not any exploit available. Detailsinfo A vulnerability, which was classified as critical, was found in wpxpo PostX Plugin up to 5.0.5 on WordPress. Affected is the function ultp_shareCount_callback. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: The Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the ultp_shareCount_callback() function in all versions up to, and including, 5.0.5. This makes it possible for unauthenticated attackers to modify the share_count post meta for any post, including private or draft posts. The weakness was released by Mohammad Amin Hajian. The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-0718 since 01/08/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/16/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23201). Productinfo Type WordPress Plugin Vendor wpxpo Name PostX Plugin Version 5.0.0 5.0.1 5.0.2 5.0.3 5.0.4 5.0.5 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.2 VulDB Base Score: 7.3 VulDB Temp Score: 7.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.3 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: Authorization CWE: CWE-862 / CWE-863 / CWE-285 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 01/08/2026 CVE reserved 04/16/2026 +97 days Advisory disclosed 04/16/2026 +0 days VulDB entry created 04/16/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Mohammad Amin Hajian Status: Not defined CVE: CVE-2026-0718 (🔒) GCVE (CVE): GCVE-0-2026-0718 GCVE (VulDB): GCVE-100-357906 EUVD: 🔒 Entryinfo Created: 04/16/2026 10:04 Updated: 04/16/2026 12:22 Changes: 04/16/2026 10:04 (64), 04/16/2026 12:22 (1) Complete: 🔍 Cache ID: 99:370:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸