CVE-2026-3155 | OneSignal Plugin up to 3.8.0 on WordPress authorization (EUVD-2026-23219)

VDB-357916 · CVE-2026-3155 · EUVD-2026-23219 ONESIGNAL PLUGIN UP TO 3.8.0 ON WORDPRESS AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.6 $0-$5k 3.47+ Summaryinfo A vulnerability was found in OneSignal Plugin up to 3.8.0 on WordPress. It has been declared as problematic. This impacts an unknown function. Executing a manipulation can lead to authorization. This vulnerability is handled as CVE-2026-3155. The attack can be executed remotely. There is not any exploit available. Detailsinfo A vulnerability has been found in OneSignal Plugin up to 3.8.0 on WordPress and classified as problematic. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity, and availability. CVE summarizes: The OneSignal – Web Push Notifications plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.8.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete OneSignal metadata for arbitrary posts. The weakness was released by Muhammad Sharief. The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-3155 since 02/24/2026. The exploitation appears to be difficult. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (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-2026-23219). Productinfo Type WordPress Plugin Name OneSignal Plugin Version 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8.0 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.7 VulDB Meta Temp Score: 3.6 VulDB Base Score: 4.2 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 3.1 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 02/24/2026 CVE reserved 04/16/2026 +50 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: Muhammad Sharief Status: Not defined CVE: CVE-2026-3155 (🔒) GCVE (CVE): GCVE-0-2026-3155 GCVE (VulDB): GCVE-100-357916 EUVD: 🔒 Entryinfo Created: 04/16/2026 15:49 Updated: 04/16/2026 15:57 Changes: 04/16/2026 15:49 (62), 04/16/2026 15:57 (1) Complete: 🔍 Cache ID: 99:13E:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸