CVE-2026-1942

Blog2Social: Social Media Auto Post & Scheduler <= 8.7.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Modification

2026-02-17 21:30
Lucas Montes (NiRoX)

Strategic Overview

Status
Patched in 8.7.5
Affected Plugin
Blog2Social: Social Media Auto Post & Scheduler
Affected Version
<= 8.7.4
CVSS
6.5Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-1942
View all Blog2Social: Social Media Auto Post & Scheduler vulnerabilities

At a glance

CVE-2026-1942 is a medium-severity Missing Authorization vulnerability in the Blog2Social WordPress plugin, affecting versions <= 8.7.4. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high integrity impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 8.7.5; sites on affected versions should update now. Disclosed February 2026, reported by Lucas Montes (NiRoX).

Vulnerability Overview

The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the b2s_curation_draft AJAX action in all versions up to, and including, 8.7.4. The curationDraft() function only verifies current_user_can('read') without checking whether the user has edit_post permission for the target post. Combined with the plugin granting UI access and nonce exposure to all roles, this makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the title and content of arbitrary posts and pages by supplying a target post ID via the 'b2s-draft-id' parameter.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on integrity.

CWE-862: Missing Authorization

Blog2Social <= 8.7.4 carries this weakness at read, and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Blog2Social the fix is 8.7.5: builds <= 8.7.4 are affected, anything from 8.7.5 onward is not.

Remediation

Update to version 8.7.5, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Blog2Social 8.7.5 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-1942https://www.wordfence.com/threat-intel/vulnerabilities/id/930e7fd6-ae0b-465a-aa93-04ef80011d32https://nvd.nist.gov/vuln/detail/CVE-2026-1942

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C