Is CVE-2026-1916 actively exploited?

No active exploitation of CVE-2026-1916 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-1916 be exploited remotely?

Yes. CVE-2026-1916 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-1916?

CVE-2026-1916 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.10%.

HOME VULNERABILITIESCVE-2026-1916

HIGH

CVE-2026-1916

CWE-862Published: February 25, 2026· Updated: Feb 25, 2026

7.5

CVSS v3.1

EPSS:0.10%probability of exploitation in 30 daysPercentile:26.9th

Official Description

The WPGSI: Spreadsheet Integration plugin for WordPress is vulnerable to unauthorized modification and loss of data due to missing capability checks and an insecure authentication mechanism on the `wpgsi_callBackFuncAccept` and `wpgsi_callBackFuncUpdate` REST API functions in all versions up to, and including, 3.8.3. Both REST endpoints use `permission_callback => '__return_true'`, allowing unauthenticated access. The plugin's custom token-based validation relies on a Base64-encoded JSON object containing the user ID and email address, but is not cryptographically signed. This makes it possible for unauthenticated attackers to forge tokens using publicly enumerable information (admin user ID and email) to create, modify, and delete arbitrary WordPress posts and pages, granted they know the administrator's email address and an active integration ID with remote updates enabled.

NVD Source

Technical Analysis

CVE-2026-1916 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 full integrity compromise (data manipulation), with a CVSS base score of 7.5.