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NVD / CVE Program· CNA hackerone

CVE-2026-105476: Improper link resolution before file access in cPanel allows remote authenticated users to write arbitrary root-owned files and escalate…

HighCVSS 8.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 35/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.59% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: WebPros cPanel 11.110.0.154, 11.134.0.67, 11.136.0.51.

Low priority for now. Upgrade to WebPros cPanel 11.110.0.154, 11.134.0.67, 11.136.0.51 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Improper link resolution before file access in cPanel allows remote authenticated users to write arbitrary root-owned files and escalate privileges.

Published
Nov 2, 2026
Updated
Nov 3, 2026
EPSS
0.5% · 48th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-105476

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hackerone). Independent of NVD's CPE analysis and usually ahead of it.

  • WebPros cPanel

    • before 11.138.0.19affected · semver
    • before 11.136.0.51affected · semver
    • before 11.134.0.67affected · semver
    • before 11.110.0.154affected · semver

Same product

webpros: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-93698Insufficient validation allows arbitrary commands to be executed via the Multilang adminbin.
    39Monitor
  • CVE-2026-67401A vulnerability in cPanel allows a mail-enabled account to achieve remote code execution as root through SQLi in EmailTrack component
    39Monitor
  • CVE-2026-87899Execution with unnecessary privileges in cPanel allows remote authenticated users to execute arbitrary code with root privileges.
    37Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-93029Oct 2, 2026 · There is a stored XSS vulnerability allowing arbitrary code execution in the WHM Manage SSL Hosts interface.
    36Monitor
  • ← EarlierCVE-2026-93697Oct 2, 2026 · There is a stored XSS vulnerability allowing arbitrary code execution in the WHM Mass Modify Accounts interface.
    36Monitor
  • ← EarlierCVE-2026-105475Nov 2, 2026 · Improper neutralization of a NUL byte in cPanel allows remote attackers to read any mail account's calendar and contact data.
    34Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
WebPros cPanel11.110.0.154Vendor (CNA)
WebPros cPanel11.134.0.67Vendor (CNA)
WebPros cPanel11.136.0.51Vendor (CNA)
WebPros cPanel11.138.0.19Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 13, 2026+11 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Not on record for this CVE: patch commit or PR link · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓
  2. CVSS— → 8.8
  3. Severity— → high
  4. SSVC exploitation— → none
  5. Exploit maturity— → none

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records