# CVE-2026-29205 — WebPros cPanel

> As of 2026-05-14, CVE-2026-29205 is a HIGH-severity vulnerability in WebPros cPanel, CVSS v3.1 8.6, EPSS 0.4% (33.3th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-29205, 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:** 2026-05-14

## What is CVE-2026-29205?

Incorrect privileges management and insufficient path filtering allow to read arbitrary file on the server via the cpdavd attachment download endpoints.

The record classifies CVE-2026-29205 under weakness class [CWE-250](https://intel.threadlinqs.com/cwe/CWE-250). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 150 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.6 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 33.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-05-13, last modified 2026-05-14

## Is CVE-2026-29205 being exploited?

It currently carries a trending score of 13 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [WebPros](https://intel.threadlinqs.com/vendors/webpros): cPanel, WP Squared

## How to fix CVE-2026-29205

The record marks a vendor fix as available for CVE-2026-29205. Patch reference: [https://support.cpanel.net/hc/en-us/articles/40437020299927-Security-CVE-2026-29205-cPanel-WHM-WP2-Security-Update-May-13-2026](https://support.cpanel.net/hc/en-us/articles/40437020299927-Security-CVE-2026-29205-cPanel-WHM-WP2-Security-Update-May-13-2026). Vendor advisory: [https://support.cpanel.net/hc/en-us/articles/40437020299927-Security-CVE-2026-29205-cPanel-WHM-WP2-Security-Update-May-13-2026](https://support.cpanel.net/hc/en-us/articles/40437020299927-Security-CVE-2026-29205-cPanel-WHM-WP2-Security-Update-May-13-2026). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-29205

1 tracked threat in the Threadlinqs corpus references CVE-2026-29205, 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. Last verified by Threadlinqs on 2026-10-10. 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/40437020299927-Security-CVE-2026-29205-cPanel-WHM-WP2-Security-Update-May-13-2026)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-29205
Full detection coverage and IOCs for threats exploiting CVE-2026-29205 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp