PatchTheCVECVE-2022-31542: The mandoku/mdweb repository through 2015-05-07 on GitHub allows absolute path traversal because the Flask sen
CVE-2022-31542 is a critical-severity flaw (CVSS 9.3) affecting mdweb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The mandoku/mdweb repository through 2015-05-07 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.3 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.3% (top 29%) |
| CISA exploited list | No |
| Weakness | CWE-22 |
| Published | 2022-07-11 |
| 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-2022-31542?
mdweb: upgrade to newer than 2015-05-07. Exact commands for each OS are on this page.
Is CVE-2022-31542 being exploited?
CVE-2022-31542 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-2022-31542 affect?
CVE-2022-31542 affects mdweb. Severity is critical (CVSS 9.3). The mandoku/mdweb repository through 2015-05-07 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.
How urgent is CVE-2022-31542?
Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action
Software pages
GitHub vulnerabilities · Flask vulnerabilities