CVE-2021-24842

Bulk Datetime Change <= 1.11 - Missing Authorisation

2021-10-26 00:00

Strategic Overview

Status: Patched in 1.12
Affected Plugin: Bulk Datetime Change
Affected Version: < 1.12
CVSS: 5.4Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2021-24842

View all Bulk Datetime Change vulnerabilities

At a glance

CVE-2021-24842 is a medium-severity Missing Authorization vulnerability in the Bulk Datetime Change WordPress plugin, affecting versions < 1.12. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). The issue is fixed in version 1.12; sites on affected versions should update now. Disclosed October 2021, reported by apple502j.

Vulnerability Overview

The Bulk Datetime Change WordPress plugin before 1.12 does not enforce capability checks which allows users with Contributor roles to 1) list private post titles of other users and 2) change the posted date of other users' posts.

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.

CWE-862: Missing Authorization

Reaching this weakness in Bulk Datetime Change < 1.12 takes a caller who can reach the endpoint. 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 Bulk Datetime Change the fix is 1.12: builds < 1.12 are affected, anything from 1.12 onward is not.

Remediation

Update to version 1.12, 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: Bulk Datetime Change 1.12 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24842 https://www.wordfence.com/threat-intel/vulnerabilities/id/505e9ba4-a19c-4d51-8ba7-4891bbac603e https://nvd.nist.gov/vuln/detail/CVE-2021-24842

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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