Arbitrary file upload in Wp-Eventmanager Event Banner
CVE-2021-24252
The Event Banner WordPress plugin through 1.3 does not verify the uploaded image file, allowing admin accounts to upload arbitrary files, such as .exe, .php, or others executable, leading to RCE. Due to the lack of CSRF check, the issue can also be used via such vector to achieve the same result, or via a LFI as authorisation checks are missing (but would require WP to be loaded)
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Wp-Eventmanager Event Banner
- Event Banner — versions 1.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/91e81c6d-f24d-4f87-bc13-746715af8f7c (Exploit, Third Party Advisory)
- github.com/jinhuang1102/CVE-ID-Reports/blob/master/Event Banner.md (Broken Link)
Frequently asked questions
- What is CVE-2021-24252?
- CVE-2021-24252 is a high-severity vulnerability in Wp-Eventmanager Event Banner, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2021-05-06.
- How severe is CVE-2021-24252?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2021-24252 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.