WordPress WP Time Capsule Insufficient Access Control

The Backup and Staging by WP Time Capsule WordPress plugin before 1.22.28 does not perform capability or nonce checks on the handler that deploys a staging site to the live site, allowing any authenticated user with a Subscriber account on a WP Time Capsule staging site to overwrite the separate live site's database and configuration and take it offline.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

This vulnerability in the Backup and Staging by WP Time Capsule plugin (before version 1.22.28) represents a critical privilege escalation and data integrity threat. It allows any authenticated user with a basic Subscriber account on a staging WordPress site to deploy changes directly to the live production site without proper authorization checks. The flaw stems from missing capability and nonce validation in the staging deployment handler, meaning attackers can bypass WordPress security controls entirely. This affects any organization using WP Time Capsule for development workflows, potentially exposing production databases, configurations, and site availability to compromise by low-privileged users.

Casky's 283 matching skills use Claude's extended reasoning to correlate this vulnerability with MITRE ATT&CK techniques TA0004 (Privilege Escalation) and TA0006 (Credential Access). Practitioners reviewing Casky findings would identify attack chains showing how Subscriber-level credentials can escalate to site administrator capabilities, coupled with detection patterns for unauthorized database overwrites and configuration changes. The platform maps the missing nonce validation (CWE-862: Missing Authorization) to specific exploitation patterns—such as automated requests to the staging deployment endpoint without CSRF tokens, suspicious cross-site database synchronization operations, and unexpected production site outages following staging activities. Security teams would see indicators tracking lateral movement from staging environments into production infrastructure, flagging this as a supply chain risk within development pipelines.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-107237.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

identity access management · low

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-107237

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