PatchTheCVECVE-2021-24549: The AceIDE WordPress plugin through 2.6.2 does not sanitise or validate the user input which is appended to sy
CVE-2021-24549 is a medium-severity flaw (CVSS 4.9) affecting aceide. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The AceIDE WordPress plugin through 2.6.2 does not sanitise or validate the user input which is appended to system paths before using it in various actions, such as to read arbitrary files from the server. This allows high privilege users such as administrator to access any file on the web server outside of the blog directory via a path traversal attack.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 1.6% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-22 |
| Published | 2021-08-23 |
| 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-2021-24549?
aceide: upgrade to newer than 2.6.2. Exact commands for each OS are on this page.
Is CVE-2021-24549 being exploited?
CVE-2021-24549 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-2021-24549 affect?
CVE-2021-24549 affects aceide. Severity is medium (CVSS 4.9). The AceIDE WordPress plugin through 2.6.2 does not sanitise or validate the user input which is appended to system paths before using it in various actions, such as to read arbitrary files from the server. This allows high privilege users s
How urgent is CVE-2021-24549?
Priority 41/100. Public exploit reference