CVE WatchAug 21, 2026

CVE-2026-74942

Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 1

CVSS

8.8

High

EPSS

0.3%

p23

KEV

—

Exploit Today

0-100

Published: Aug 18, 2026 · Last modified: Aug 21, 2026 · CWE-269

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-08-192026-09-09

Technical description

Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

Official references

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CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-867466.4 MED

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——0Snipe-IT before 8.7.0 contains an authorization bypass vulnerability in Livewire components that enforce authorization only at the route level, not within component lifecycle methods. Attackers with a valid authenticated session can replay signed component snapshots via POST /livewire/update to invoke protected methods and escalate privileges, including creating OAuth clients, minting personal access tokens, and accessing sensitive admin data.1d CVE-2026-143598.8 HIG

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——5The YITH WooCommerce Waitlist Premium plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 3.35.0. This is due to the add_user_in_waiting_list() function registered on the wp_ajax_yith_wcwtl_add_user action being missing both a capability check and a nonce verification, and using parse_str() + extract() to import attacker-controlled variables from $_POST['params'] that are then passed to wp_create_user() and $user->set_role(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to that of an administrator by creating a new user account and assigning it the administrator role.1d CVE-2026-12858—

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——0Improper Privilege Management vulnerability in ESET AV Remover (standalone) allows Privilege Escalation via especially crafted RPC.1d CVE-2026-759277.2 HIG

27.3%

——8The PublishPress Capabilities – User Role Editor, Access Permissions, User Capabilities, Admin Menus plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.50.0. This is due to the `addPluginCapabilities()` function unconditionally granting the Editor role all 15 `manage_capabilities_*` capabilities — including `manage_capabilities`, `manage_capabilities_roles`, `manage_capabilities_settings`, and `manage_capabilities_backup` — via a hard-coded `$eligible_roles = ['administrator', 'editor']` assignment that runs automatically on the first `admin_init` after plugin activation with no administrator opt-in, persisting the grants directly to the database. This makes it possible for authenticated attackers with Editor-level access to elevate their privileges to a site-wide capability manager, enabling them to create, rename, and delete non-system roles, modify capabilities of non-administrator roles, restore role backups, and write arbitrary plugin options whose names begin with `cme_`, `capsman`, `pp_capabilities`, or `presspermit` via `update_option()`. The escalation stops short of full Administrator access, as WordPress's `map_meta_cap` layer still prevents the escalated Editor from granting administrator-only capabilities to other roles; however, all role-management and plugin-settings functionality gated solely on `manage_capabilities_*` capabilities remains fully accessible.1d CVE-2026-175537.2 HIG

37.2%

——11The WP EasyCart plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.9.3. This is due to the ec_ajax_save_page_default_options() AJAX handler iterating over every $_POST key and passing it directly into update_option() without any allowlist, while gating the handler only on 'manage_options' OR the plugin's custom 'wpec_manager' capability. The plugin's built-in 'wpec_store_manager' role holds 'wpec_manager' but not 'manage_options', and the required nonce is emitted on frontend product/category templates that render for any user with 'wpec_manager'. This makes it possible for authenticated attackers, with Store Manager-level access and above, to elevate their privileges to administrator by updating arbitrary WordPress options such as default_role='administrator' and users_can_register='1', then self-registering a new account that is assigned the administrator role.1d CVE-2026-768018.8 HIG

41.3%

——12The FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart Abandonment plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.1.10 via the value function. This is due to a trivially bypassable regex blacklist in Executer::allowedToRun() that fails to block WordPress core functions such as wp_insert_user, update_option, and file_put_contents, combined with no sanitization of PHP condition rule values stored via the firebox_meta REST endpoint. This makes it possible for authenticated attackers, with author-level access and above, to execute code on the server. On sites upgraded from a version prior to 3.1.10, the Migrator::preserveCampaignRoleAccess() function automatically grants the edit_fireboxes and publish_fireboxes capabilities to the Author role, lowering the effective entry point to Author-level access.1d