CVE-2026-111625 10up CVE debrief

Who should care

Multisite network administrators and security teams using 10up Distributor should assess exposure and prioritize remediation to prevent potential unauthorized content creation and privilege escalation. They should review user permissions and access controls, monitor for suspicious post creation activity, and consider implementing compensating controls for exposed systems. Additionally, they should verify the affected scope and severity of the vulnerability

Why it matters

CVE-2026-111625 is a medium-severity vulnerability in 10up Distributor that allows Contributor-level users to create posts on other sites in a multisite network. Defenders should prioritize remediation to prevent potential unauthorized content creation and privilege escalation.

• Potential unauthorized post creation on multisite networks
• Elevation of privileges for Contributor-level users
• Increased risk of content tampering or malicious content injection
• Verification of user permissions and access controls required

Technical summary

The 10up Distributor plugin before version 2.3.2 contains a missing authorization vulnerability in the ajax_push() function, which allows Contributor-level multisite users to create draft or published posts on other network sites they cannot access. This vulnerability has a CVSS score of 5.3 and is classified as medium-severity. The vulnerability is caused by insufficient authorization checks in the ajax_push() function, which can be exploited by Contributor-level users to create posts on other sites in the multisite network. To exploit this vulnerability, an attacker would need to have Contributor-level access on a site in the multisite network and use the dt-push nonce with a chosen connection id and post

Defensive priority

Medium-priority vulnerability remediation required for 10up Distributor versions before 2.3.2.

Recommended defensive actions

• Upgrade 10up Distributor to version 2.3.2 or later
• Review and restrict Contributor-level multisite user permissions
• Monitor for suspicious post creation activity on multisite networks
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on a missing authorization vulnerability in 10up Distributor before 2.3.2, allowing Contributor-level multisite users to publish posts on other network sites. The official CVE Program record and NIST NVD detail page offer additional information on the vulnerability. However, the exact scope of affected deployments and specific exploitation attempts remain unknown. Defenders should verify user permissions and access controls, monitor for suspicious post creation activity, and review the 10

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.