CVE-2026-115840 e4jvikwp CVE debrief

Who should care

Defenders responsible for WordPress installations with the VikRentCar Car Rental Management System plugin should assess exposure and prioritize verification and potential updates. This includes reviewing the plugin version, checking for the presence of the vulnerable plugin, and verifying that the plugin has been updated to a version beyond 1.4.9, if available. Additionally, defenders should consider the potential impact on their environment, including the

Why it matters

The VikRentCar Car Rental Management System plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing unauthenticated attackers to inject arbitrary web scripts. Defenders should prioritize verification and updates, and assess exposure in their environment.

• Unauthenticated attackers can inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
• Successful exploitation could lead to unauthorized script execution in the context of affected users.
• Defenders should verify and update the plugin to mitigate the vulnerability.
• Exposure requires verification from official sources.

Technical summary

The VikRentCar Car Rental Management System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'poplink' parameter in all versions up to, and including, 1.4.9. The vulnerability exists due to insufficient input sanitization and output escaping, allowing unauthenticated attackers to inject arbitrary web scripts. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The handler requires only a WordPress nonce (vikwp_nonce), which the plugin itself emits to unauthenticated visitors on the public booking-confirmation page, allowing an attacker to obtain a valid token without any account.

Defensive priority

Defenders should prioritize verifying and updating the VikRentCar Car Rental Management System plugin to a version beyond 1.4.9, if available, and assess exposure in their environment.

Recommended defensive actions

• Verify and update the VikRentCar Car Rental Management System plugin to a version beyond 1.4.9, if available.
• Assess exposure in the environment by checking for the presence of the vulnerable plugin version.
• Monitor for potential exploitation attempts targeting the vulnerable plugin.
• 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 details on the vulnerability, including its description and CVSS score. However, the corpus does not establish versions beyond 1.4.9 are affected or provide specific remediation steps.

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.