CVE-2021-24491

CVE-2021-24491 is a high-severity vulnerability in Fileviewer Project Fileviewer with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Description

The Fileviewer WordPress plugin through 2.2 does not have CSRF checks in place when performing actions such as upload and delete files. As a result, attackers could make a logged in administrator delete and upload arbitrary files via a CSRF attack

Frequently asked questions

What is CVE-2021-24491?
The Fileviewer WordPress plugin through 2.2 does not have CSRF checks in place when performing actions such as upload and delete files. As a result, attackers could make a logged in administrator delete and upload arbitrary files via a CSRF attack
How severe is CVE-2021-24491?
CVE-2021-24491 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-24491 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24491?
CVE-2021-24491 affects Fileviewer Project Fileviewer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24491?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-24491 published?
CVE-2021-24491 was published on 2021-09-13 and last updated on 2026-06-17.

References

Affected products (1)

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