What is CVE-2023-2240?

CVE-2023-2240 is a high-severity vulnerability in Microweber, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2023-04-22.

How severe is CVE-2023-2240?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-2240 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Privilege escalation in Microweber

CVE-2023-2240

Improper Privilege Management in GitHub repository microweber/microweber prior to 1.3.4.

Vulnerability class: Privilege Escalation

Published 2023-04-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Microweber
Microweber Microweber/microweber — versions unspecified

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

Public proof-of-concept exploits

References

huntr.dev/bounties/8f595559-7b4b-4b00-954c-7a627766e203 (Third Party Advisory)
github.com/microweber/microweber/commit/f43d5b767ad5814fc5f84bbaf0b77996262f3a4b (Patch)

Frequently asked questions

What is CVE-2023-2240?: CVE-2023-2240 is a high-severity vulnerability in Microweber, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2023-04-22.
How severe is CVE-2023-2240?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-2240 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.