Vulnerability Monitor

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CVE-2023-42457

plone.rest allows users to use HTTP verbs such as GET, POST, PUT, DELETE, etc. in Plone. Starting in the 2.x branch and prior to versions 2.0.1 and 3.0.1, when the `++api++` traverser is accidentally used multiple times in a url, handling it takes increasingly longer, making the server less responsive. Patches are available in `plone.rest` 2.0.1 and 3.0.1. Series 1.x is not affected. As a workaround, one may redirect `/++api++/++api++` to `/++api++` in one's frontend web server (nginx, Apache).

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 1 product from plone organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2023-09-21T15:15:10.943

Last Modified

2025-02-13T17:17:08.290

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-400
CWE-770
Type: Primary
CWE-770

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	plone	rest	2.0.0	Yes
Application	plone	rest	3.0.0	Yes

References

http://www.openwall.com/lists/oss-security/2023/09/22/2 Mailing List, Third Party Advisory ([email protected])
https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7 Patch ([email protected])
https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302 Patch ([email protected])
https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcq Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2023/09/22/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/plone/plone.rest/commit/43b4a7e86206e237e1de5ca3817ed071575882f7 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/plone/plone.rest/commit/77846a9842889b24f35e8bedc2e9d461388d3302 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/plone/plone.rest/security/advisories/GHSA-h6rp-mprm-xgcq Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For plone's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.