Deserialization in Automattic Jetpack Crm
CVE-2022-3342
The Jetpack CRM plugin for WordPress is vulnerable to PHAR deserialization via the ‘zbscrmcsvimpf’ parameter in the 'zeroBSCRM_CSVImporterLitehtml_app' function in versions up to, and including, 5.3.1. While the function performs a nonce check, steps 2 and 3 of the check do not take any action upon a failed check. These steps then perform a 'file_exists' check on the value of 'zbscrmcsvimpf'. If a phar:// archive is supplied, its contents will be deserialized and an object injected in the execution stream. This allows an unauthenticated attacker to obtain object injection if they are able to upload a phar archive (for instance if the site supports image uploads) and then trick an administrator into performing an action, such as clicking a link.
Vulnerability class: Insecure Deserialization
EPSS: 0.010 (58.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Patch)
- security@wordfence.com (Patch)
Frequently asked questions
- What is CVE-2022-3342?
- CVE-2022-3342 is a high-severity vulnerability in Automattic Jetpack Crm, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2023-10-20.
- How severe is CVE-2022-3342?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-3342 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.