Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2026-10795

UpdraftPlus: WP Backup & Migration Plugin <= 1.26.4 Unauthenticated Authentication Bypass

David Anderson / UpdraftPlus: WP Backup & Migration Plugin · 0 to <= 1.26.4

Watch CVE-2026-10795 Browse KEV feed
Severity
CVSS 8.1 · High
Confidence
High
Exploit status
Exploited in the wild
EPSS
3.6%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-10795 is an unauthenticated vulnerability affecting David Anderson UpdraftPlus: WP Backup & Migration Plugin. The UpdraftPlus: WP Backup & Migration Plugin plugin for WordPress is vulnerable to Authentication...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

David Anderson / UpdraftPlus: WP Backup & Migration Plugin 0 to <= 1.26.4.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

UpdraftPlus: WP Backup & Migration Plugin <= 1.26.4 Unauthenticated Authentication Bypass

The UpdraftPlus: WP Backup & Migration Plugin plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.26.4 via the UpdraftPlus_Remote_Communications_V2::wp_loaded function. This is due to insufficient validation of the remote communications message format, where signature verification can be bypassed and unchecked decryption return values collapse to a predictable all-zero encryption key.

This makes it possible for unauthenticated attackers to forge arbitrary RPC commands and run them as the connected administrator, such as uploading and activating a malicious plugin, which ultimately leads to remote code execution.

davidanderson Affected
UpdraftPlus: WP Backup & Migration Plugin
Through 1.26.4
Published
11 Jun 2026
Exploitation Reported
11 Jun 2026
Attack vector
Remote
Complexity
High
Privileges
None
User interaction
None

Tags

wordpress

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

Daily CyberSecurity

Recorded 11 Jun 2026

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
Daily CyberSecurity First 2026-06-11 07:20 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.1 High

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

3.6%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Verification of Cryptographic Signature CWE-347

Recent mention · The Hacker News

Attackers Abuse UpdraftCentral Keys to Plant Backdoors on WordPress Sites

Ravie LakshmananOct 21, 2026Cyber Attack / Web Security Unknown threat actors breached TeamUpdraft's website and potentially gained unauthorized access to customers' connection keys for UpdraftCentral, UpdraftVault, and UpdraftClone, using them to backdoor WordPress sites....

Read full advisory

All Mentions

Recent mention · The Hacker News

Attackers Abuse UpdraftCentral Keys to Plant Backdoors on WordPress Sites

The Hacker News · 21 Oct 2026

Ravie LakshmananOct 21, 2026Cyber Attack / Web Security Unknown threat actors breached TeamUpdraft's website and potentially gained unauthorized access to customers' connection keys for UpdraftCentral, UpdraftVault, and UpdraftClone, using them to backdoor WordPress sites. TeamUpdraft is the developer behind UpdraftPlus, a popular WordPress backup plugin with over four million active installations. The vendor also offers UpdraftCentral, a remote management service that's used for managing multiple sites remotely. A client component of UpdraftCentral is shipped within every copy of...

Recent mention · Wordfence

PSA: UpdraftCentral Connection Key Compromise Used to Install Malicious Plugins on WordPress Sites

Wordfence · 19 Oct 2026

TeamUpdraft has disclosed unauthorized access to its teamupdraft.com website over the weekend of October 17-18, 2026. The company believes its customer database was accessed and says that database contained connection keys for UpdraftCentral, UpdraftVault, and UpdraftClone, along with customer account information. The post PSA: UpdraftCentral Connection Key Compromise Used to Install Malicious Plugins on WordPress Sites appeared first on Wordfence.

Recent mention · Daily CyberSecurity

Critical UpdraftPlus CVE-2026-10795 Exploit Targets Millions

Daily CyberSecurity · 10 Jun 2026

Cybersecurity experts recently identified a massive threat to WordPress websites. Specifically, hackers are actively exploiting a critical UpdraftPlus The post Critical UpdraftPlus CVE-2026-10795 Exploit Targets Millions appeared first on Daily CyberSecurity. Related posts: Critical WordPress Plugin Flaw (CVE-2025-7384, CVSS 9.8) Exposes 70,000+ Sites to RCE and Data Loss CVE-2025-5821: Critical Authentication Bypass in WordPress Case Theme User Plugin Exploited in the Wild Critical Flaw in Termix Docker Image (CVE-2025-59951) Leaks SSH Credentials Without Authentication

Timeline

From disclosure to observed exploitation

  1. 07:20 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  2. 05:34 UTC

    CVE published

    Vulnerability disclosed publicly

  3. 21:07 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2026-10795

Sample API response 
{
  "cve_id": "CVE-2026-10795",
  "confidence": "High",
  "cvss_score": 8.1,
  "cvss_estimated": false,
  "epss_score": 0.03635,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}