WebPros cPanel/WP Squared Chmod Call Cpanel::Nova::Connector symlink

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in WebPros cPanel and WP Squared. Affected is the function Cpanel::Nova::Connector of the component Chmod Call Handler. The manipulation results in symlink. This vulnerability was named CVE-2026-29203. The attack needs to be approached locally. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in WebPros cPanel and WP Squared (affected version unknown). It has been classified as critical. Affected is the function Cpanel::Nova::Connector of the component Chmod Call Handler. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.

The advisory is shared for download at support.cpanel.net. This vulnerability is traded as CVE-2026-29203 since 03/04/2026. The exploitability is told to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1441). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • cPanel cPanel/WHM

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 8.8
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/04/2026 CVE reserved
05/08/2026 +64 days Advisory disclosed
05/08/2026 +0 days VulDB entry created
05/18/2026 +10 days VulDB entry last update

Sourcesinfo

Advisory: support.cpanel.net
Status: Confirmed

CVE: CVE-2026-29203 (🔒)
GCVE (CVE): GCVE-0-2026-29203
GCVE (VulDB): GCVE-100-362328
CERT Bund: WID-SEC-2026-1441 - cPanel cPanel/WHM: Mehrere Schwachstellen

Entryinfo

Created: 05/08/2026 21:38
Updated: 05/18/2026 10:29
Changes: 05/08/2026 21:38 (55), 05/11/2026 12:49 (7), 05/18/2026 10:29 (23)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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