CVE-2026-16257

HighCVSS 8.2/10Last modified Aug 26, 2026

Description

The Arvow AI SEO Writer WordPress plugin before 1.5.4 does not properly restrict access to one of its REST endpoints, whose only access control can be bypassed by unauthenticated users through type juggling when the Arvow AI SEO Writer WordPress plugin before 1.5.4 has not been configured, allowing them to create arbitrary posts and pages and to disclose author account and taxonomy information.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Weakness enumeration

CWE-287

Affected software

VendorProductVersions
UnknownArvow AI SEO Writer< 1.5.4

References

Timeline

Published
Aug 10, 2026
Last modified
Aug 26, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-162589.8The Ajax Search Lite WordPress plugin before 4.14.5 does not prevent the deserialization of untrusted input, allowing unauthenticated attacCVE-2026-162599.8The Uix UserCenter WordPress plugin through 1.0.3 does not verify that the account being modified through an unauthenticated profile-update CVE-2026-16269.1An attacker may exploit the use of weak CBC-based cipher suites in the device’s SSH service to potentially observe or manipulate parts of thCVE-2026-162606.8The Post Grid, Slider & Carousel Ultimate WordPress plugin before 1.8.1 does not sanitise and escape one of its custom post type settings bCVE-2026-162617.5The login-social WordPress plugin through 1.0.4 does not validate password-reset requests against a reset key or the requester's identity, aCVE-2026-162627.5The Estatik Real Estate Plugin WordPress plugin before 4.3.3 does not bind its OAuth social login flow to the initiating user session, allowCVE-2026-162638.8The WP Maps WordPress plugin before 4.9.7 does not perform a capability check in one of its AJAX actions and does not properly validate a uCVE-2026-162646.5The Newsletters WordPress plugin before 4.18.1 does not perform an ownership check on some of its subscriber management actions, and issues CVE-2026-162656.5The WP Maps WordPress plugin before 4.9.7 does not perform a capability check in one of its AJAX actions and does not restrict the operatioCVE-2026-162664.0Versions of the package mongo-object before 3.0.3 are vulnerable to Prototype Pollution via the expandKey() function in util.js. An attackerCVE-2026-162678.1The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submiCVE-2026-162688.2The Newsletters WordPress plugin before 4.16 does not authenticate or validate a bounce-processing request before fetching a user-supplied U
CVE-2026-16257: High severity, CVSS 8.2 | Vulnix