Is CVE-2026-31843 actively exploited?

No active exploitation of CVE-2026-31843 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-31843 be exploited remotely?

Yes. CVE-2026-31843 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-31843?

CVE-2026-31843 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-31843

CWE-284Published: April 16, 2026· Updated: Apr 17, 2026

9.8

CVSS v3.1

EPSS:0.89%probability of exploitation in 30 daysPercentile:75.5th

Official Description

The goodoneuz/pay-uz Laravel package (<= 2.2.24) contains a critical vulnerability in the /payment/api/editable/update endpoint that allows unauthenticated attackers to overwrite existing PHP payment hook files. The endpoint is exposed via Route::any() without authentication middleware, enabling remote access without credentials. User-controlled input is directly written into executable PHP files using file_put_contents(). These files are later executed via require() during normal payment processing workflows, resulting in remote code execution under default application behavior. The payment secret token mentioned by the vendor is unrelated to this endpoint and does not mitigate the vulnerability.

NVD Source

Technical Analysis

CVE-2026-31843 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.