PatchTheCVECVE-2021-24491: The Fileviewer WordPress plugin through 2.2 does not have CSRF checks in place when performing actions such as
CVE-2021-24491 is a high-severity flaw (CVSS 8.8) affecting fileviewer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.7% (top 46%) |
| CISA exploited list | No |
| Weakness | CWE-352 |
| Published | 2021-09-13 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-24491?
fileviewer: upgrade to newer than 2.2. Exact commands for each OS are on this page.
Is CVE-2021-24491 being exploited?
CVE-2021-24491 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-24491 affect?
CVE-2021-24491 affects fileviewer. Severity is high (CVSS 8.8). 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
How urgent is CVE-2021-24491?
Priority 49/100. High severity; Public exploit reference