CVE-2021-24685 json
Flat Preloader < 1.5.4 - CSRF to Stored Cross-Site Scripting
published 2021-11-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11597
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
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)
Patch / fix
- flat_preloader_project flat_preloader 1.5.4
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/972ecde8-3d44-4dd9-81e3-643d8737434f referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- Unknown Flat Preloader
Classification
- Weakness
- Technology feeds
References
-
wpscan.com
/vulnerability/972ecde8-3d44-4dd9-81e3-643d8737434f
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24685
- NVD CVE-2021-24685
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