# CVE-2026-68490 — WebPros cPanel

> As of 2026-09-24, CVE-2026-68490 is a High-severity (band derived from the CVSS v4.0 score, not stated by the CNA) vulnerability in WebPros cPanel, CVSS v4.0 8.2, EPSS 0.1% (2.2th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-68490, most recently “cPanel/WHM CalDAV/CardDAV and WP Toolkit Flaws Enable Cross-Account Access and Root Privilege Escalation (CVE-2026-68490, CVE-2026-87899, CVE-2026-87900)”.

**Last updated:** 2026-09-24

## What is CVE-2026-68490?

Incorrect permission assignment allows local users to obtain sensitive CalDAV/CardDAV information belonging to other accounts.

The record classifies CVE-2026-68490 under weakness class [CWE-732](https://intel.threadlinqs.com/cwe/CWE-732). 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 12 days ago.

## Severity and exploitation probability

- **CVSS v4.0 base score:** 8.2 — High (derived from score) (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 2.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-23, last modified 2026-09-24

## Is CVE-2026-68490 being exploited?

No public exploitation evidence for CVE-2026-68490 is recorded in the sources Threadlinqs tracks — CISA KEV, Exploit-DB, public proof-of-concept repositories and ProjectDiscovery Nuclei — as of 2026-09-24. That is an absence of evidence in those feeds, not a guarantee that the vulnerability is unexploited.

## Affected products and versions

- **WebPros**: cPanel

## How to fix CVE-2026-68490

No vendor patch reference has been recorded for CVE-2026-68490 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-68490

1 tracked threat in the Threadlinqs corpus references CVE-2026-68490, either in the campaign’s CVE list or as an indicator on the campaign record.

- [cPanel/WHM CalDAV/CardDAV and WP Toolkit Flaws Enable Cross-Account Access and Root Privilege Escalation (CVE-2026-68490, CVE-2026-87899, CVE-2026-87900)](https://intel.threadlinqs.com/threat/TL-2026-2636) — CRITICAL · 2026-09-23

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-09-24. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [support.cpanel.net](https://support.cpanel.net/hc/en-us/articles/43502940099991)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-68490
Full detection coverage and IOCs for threats exploiting CVE-2026-68490 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp