Cyber Resilience

CVE-2021-24840

MediumPublic PoC

Published: 08 November 2021

Published
08 November 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0037 59.1th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-24840 is a medium-severity Authorization Bypass Through User-Controlled Key (CWE-639) vulnerability in Codesupply Squaretype. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 40.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

The Squaretype WordPress theme before 3.0.4 allows unauthenticated users to manipulate the query_vars used to retrieve the posts to display in one of its REST endpoint, without any validation. As a result, private and scheduled posts could be retrieved via…

more

a crafted request.

CWE(s)
CWE-639

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

codesupply
squaretype
≤ 3.0.4

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AC-24 Access Control Decisions
addresses: CWE-639

Per-request decision making makes it harder to bypass authorization using user-controlled keys without proper validation in the decision process.

AC-3 Access Enforcement
addresses: CWE-639

Consistent enforcement of approved authorizations makes bypassing via user-controlled keys ineffective.

References