XSS in Flat Preloader Project
CVE-2021-24685
The Flat Preloader WordPress plugin before 1.5.4 does not enforce nonce checks when saving its settings, as well as does not sanitise and escape them, which could allow attackers to a make logged in admin change them with a Cross-Site Scripting payload (triggered either in the frontend or backend depending on the payload)
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Flat Preloader Project
- Flat Preloader — versions 1.5.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/972ecde8-3d44-4dd9-81e3-643d8737434f (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24685?
- CVE-2021-24685 is a medium-severity vulnerability in Flat Preloader Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-11-01.
- How severe is CVE-2021-24685?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-24685 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.