Deserialization in Querysol Redirection For Contact Form 7
CVE-2021-24280
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the import_from_debug AJAX action to inject PHP objects.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-fo… (Exploit, Vendor Advisory)
- wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329 (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-24280?
- CVE-2021-24280 is a high-severity vulnerability in Querysol Redirection For Contact Form 7, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2021-05-14.
- How severe is CVE-2021-24280?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-24280 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.