CVE-2026-87762 Adwised CVE debrief

Who should care

Defenders responsible for WordPress installations with the Adwised Web Push Notification plugin should assess their exposure and prioritize verification and potential updates. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify the presence of the plugin, assess the risk, and apply necessary mitigations.

Why it matters

Defenders should prioritize verifying the presence of the Adwised Web Push Notification WordPress plugin version 2.5.7 or earlier and assess if the secret key has been set to prevent potential malicious JavaScript execution.

• Unauthenticated users can store arbitrary JavaScript that is executed in the browser of every site visitor
• Potential for malicious JavaScript execution in visitor browsers
• Possible impact on site visitors due to stored JavaScript

Technical summary

The Adwised Web Push Notification WordPress plugin through 2.5.7 does not have authorisation checks on several state-changing operations. The secret comparison it uses instead can be bypassed on installations where the secret key has never been set, allowing unauthenticated users to store arbitrary JavaScript that is executed in the browser of every site visitor. This could lead to potential malicious JavaScript execution in visitor browsers and possible impact on site visitors due to stored JavaScript. Defenders should prioritize verifying the presence of the Adwised Web Push Notification WordPress plugin version 2.5.7 or earlier and assess if the secret key has been set.

Defensive priority

Defenders should prioritize verifying the presence of the Adwised Web Push Notification WordPress plugin version 2.5.7 or earlier and assess if the secret key has been set.

Recommended defensive actions

• Verify the presence of the Adwised Web Push Notification WordPress plugin version 2.5.7 or earlier
• Assess if the secret key has been set
• Consider updating the plugin to a version that includes authorization checks
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the affected versions and potential impact. The Adwised Web Push Notification WordPress plugin through 2.5.7 does not have authorisation checks on several state-changing operations, and the secret comparison it uses instead can be bypassed on installations where the secret key has never been set. Defenders should verify the presence of the plugin, assess if the secret key has been set, and consider updating.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.