Deserialization in Instawp String Locator
CVE-2022-2434
The String Locator plugin for WordPress is vulnerable to deserialization of untrusted input via the 'string-locator-path' parameter in versions up to, and including 2.5.0. This makes it possible for unauthenticated users to call files using a PHAR wrapper, granted they can trick a site administrator into performing an action such as clicking on a link, that will deserialize and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.
Vulnerability class: Insecure Deserialization
EPSS: 0.013 (67.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Instawp String Locator — versions 0
- Instawp String_locator
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Broken Link)
- security@wordfence.com (Patch)
- security@wordfence.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-2434?
- CVE-2022-2434 is a high-severity vulnerability in Instawp String Locator, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2022-09-06.
- How severe is CVE-2022-2434?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-2434 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.