CVE-2021-24789
CVE-2021-24789 is a medium-severity vulnerability in Flat Preloader Project Flat Preloader with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 4.8)
- CVSS v2: 3.5
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Flat Preloader Project Flat Preloader
- Published:
- Last modified:
Description
The Flat Preloader WordPress plugin before 1.5.5 does not escape some of its settings when outputting them in attribute in the frontend, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed
Frequently asked questions
- What is CVE-2021-24789?
- The Flat Preloader WordPress plugin before 1.5.5 does not escape some of its settings when outputting them in attribute in the frontend, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed
- How severe is CVE-2021-24789?
- CVE-2021-24789 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-24789 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-24789?
- CVE-2021-24789 affects Flat Preloader Project Flat Preloader. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-24789?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-24789 published?
- CVE-2021-24789 was published on 2021-11-01 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:flat_preloader_project:flat_preloader:*:*:*:*:*:wordpress:*:*
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