CVE-2020-7699: This affects the package express-fileupload before 1.1.8
CVE-2020-7699 is a high-severity flaw (CVSS 7.5) affecting express-fileupload, max data. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
This affects the package express-fileupload before 1.1.8. If the parseNested option is enabled, sending a corrupt HTTP request can lead to denial of service or arbitrary code execution.
Why this priority
- High severity
- EPSS top 8%: very likely to be exploited
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 4.8% (top 8%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2020-07-30 |
| 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-2020-7699?
express-fileupload: upgrade to 1.1.8; max data: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-7699 being exploited?
CVE-2020-7699 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-2020-7699 affect?
CVE-2020-7699 affects express-fileupload, max data. Severity is high (CVSS 7.5). This affects the package express-fileupload before 1.1.8. If the parseNested option is enabled, sending a corrupt HTTP request can lead to denial of service or arbitrary code execution.
How urgent is CVE-2020-7699?
Priority 59/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2022-27261 HIGH 7.5 DOWNGRADE An arbitrary file write vulnerability in Express-FileUpload v1.3.1 allows attackers to upload multiple files w
- CVE-2022-27140 CRITICAL 9.8 DOWNGRADE An arbitrary file upload vulnerability in the file upload module of express-fileupload 1.3.1 allows attackers